76640774560426 has 64 divisors (see below), whose sum is σ = 116741528640000. Its totient is φ = 37732358822400.

The previous prime is 76640774560423. The next prime is 76640774560451. The reversal of 76640774560426 is 62406547704667.

It is a happy number.

It is a super-2 number, since 2×76640774560426² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76640774560423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30991011526 + ... + 30991013998.

It is an arithmetic number, because the mean of its divisors is an integer number (1824086385000).

Almost surely, 2^{76640774560426} is an apocalyptic number.

76640774560426 is a deficient number, since it is larger than the sum of its proper divisors (40100754079574).

76640774560426 is a wasteful number, since it uses less digits than its factorization.

76640774560426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175.

The product of its (nonzero) digits is 284497920, while the sum is 64.

The spelling of 76640774560426 in words is "seventy-six trillion, six hundred forty billion, seven hundred seventy-four million, five hundred sixty thousand, four hundred twenty-six".