71031053850750 has 320 divisors, whose sum is σ = 230732253797760. Its totient is φ = 15969508992000.

The previous prime is 71031053850737. The next prime is 71031053850821. The reversal of 71031053850750 is 5705835013017.

71031053850750 is a `hidden beast` number, since 7 + 1 + 0 + 3 + 10 + 538 + 50 + 7 + 50 = 666.

It is a super-2 number, since 2×71031053850750² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 71031053850696 and 71031053850705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4539366 + ... + 12754134.

It is an arithmetic number, because the mean of its divisors is an integer number (721038293118).

Almost surely, 2^{71031053850750} is an apocalyptic number.

71031053850750 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 71031053850750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115366126898880).

71031053850750 is an abundant number, since it is smaller than the sum of its proper divisors (159701199947010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71031053850750 is a wasteful number, since it uses less digits than its factorization.

71031053850750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214866 (or 8214847 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

Adding to 71031053850750 its reverse (5705835013017), we get a palindrome (76736888863767).

The spelling of 71031053850750 in words is "seventy-one trillion, thirty-one billion, fifty-three million, eight hundred fifty thousand, seven hundred fifty".