71512460578368 has 84 divisors (see below), whose sum is σ = 205880541481680. Its totient is φ = 23732475860736.

The previous prime is 71512460578367. The next prime is 71512460578409. The reversal of 71512460578368 is 86387506421517.

It is a happy number.

71512460578368 is a `hidden beast` number, since 7 + 1 + 5 + 1 + 24 + 6 + 0 + 578 + 36 + 8 = 666.

It is a super-2 number, since 2×71512460578368² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71512460578367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273335278 + ... + 273596781.

Almost surely, 2^{71512460578368} is an apocalyptic number.

It is an amenable number.

71512460578368 is an abundant number, since it is smaller than the sum of its proper divisors (134368080903312).

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

71512460578368 is a wasteful number, since it uses less digits than its factorization.

71512460578368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546932304 (or 546932291 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 71512460578368 in words is "seventy-one trillion, five hundred twelve billion, four hundred sixty million, five hundred seventy-eight thousand, three hundred sixty-eight".