76464642544 has 40 divisors (see below), whose sum is σ = 149378006160. Its totient is φ = 37916786688.

The previous prime is 76464642539. The next prime is 76464642559. The reversal of 76464642544 is 44524646467.

It is a junction number, because it is equal to n+sod(n) for n = 76464642491 and 76464642500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901047 + ... + 982249.

It is an arithmetic number, because the mean of its divisors is an integer number (3734450154).

Almost surely, 2^76464642544 is an apocalyptic number.

It is an amenable number.

76464642544 is a deficient number, since it is larger than the sum of its proper divisors (72913363616).

76464642544 is a wasteful number, since it uses less digits than its factorization.

76464642544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81697 (or 81691 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 52.

The spelling of 76464642544 in words is "seventy-six billion, four hundred sixty-four million, six hundred forty-two thousand, five hundred forty-four".