71245021034880 has 576 divisors, whose sum is σ = 312200916889680. Its totient is φ = 14804159569920.

The previous prime is 71245021034843. The next prime is 71245021034911. The reversal of 71245021034880 is 8843012054217.

71245021034880 is a `hidden beast` number, since 7 + 1 + 24 + 502 + 1 + 0 + 3 + 48 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×71245021034880² (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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8369319 + ... + 14578598.

Almost surely, 2^{71245021034880} is an apocalyptic number.

71245021034880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71245021034880 is an abundant number, since it is smaller than the sum of its proper divisors (240955895854800).

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

71245021034880 is a wasteful number, since it uses less digits than its factorization.

71245021034880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947967 (or 22947945 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 71245021034880 in words is "seventy-one trillion, two hundred forty-five billion, twenty-one million, thirty-four thousand, eight hundred eighty".