71327262840 has 32 divisors (see below), whose sum is σ = 213981788880. Its totient is φ = 19020603392.

The previous prime is 71327262761. The next prime is 71327262883. The reversal of 71327262840 is 4826272317.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71327262792 and 71327262801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297196809 + ... + 297197048.

Almost surely, 2^71327262840 is an apocalyptic number.

It is an amenable number.

71327262840 is an abundant number, since it is smaller than the sum of its proper divisors (142654526040).

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

71327262840 is a wasteful number, since it uses less digits than its factorization.

71327262840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594393871 (or 594393867 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 71327262840 in words is "seventy-one billion, three hundred twenty-seven million, two hundred sixty-two thousand, eight hundred forty".