76544560721472 has 112 divisors (see below), whose sum is σ = 210441674502144. Its totient is φ = 24528271680000.

The previous prime is 76544560721459. The next prime is 76544560721477. The reversal of 76544560721472 is 27412706544567.

It is a happy number.

It is a super-2 number, since 2×76544560721472² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76544560721477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41685054 + ... + 43482557.

Almost surely, 2^{76544560721472} is an apocalyptic number.

It is an amenable number.

76544560721472 is an abundant number, since it is smaller than the sum of its proper divisors (133897113780672).

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

76544560721472 is a wasteful number, since it uses less digits than its factorization.

76544560721472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85167808 (or 85167798 counting only the distinct ones).

The product of its (nonzero) digits is 79027200, while the sum is 60.

The spelling of 76544560721472 in words is "seventy-six trillion, five hundred forty-four billion, five hundred sixty million, seven hundred twenty-one thousand, four hundred seventy-two".