76780562668 has 12 divisors (see below), whose sum is σ = 135670509520. Its totient is φ = 38017559952.

The previous prime is 76780562657. The next prime is 76780562687. The reversal of 76780562668 is 86626508767.

It is a super-2 number, since 2×76780562668² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93179883 + ... + 93180706.

Almost surely, 2^76780562668 is an apocalyptic number.

It is an amenable number.

76780562668 is a deficient number, since it is larger than the sum of its proper divisors (58889946852).

76780562668 is a wasteful number, since it uses less digits than its factorization.

76780562668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186360696 (or 186360694 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 76780562668 in words is "seventy-six billion, seven hundred eighty million, five hundred sixty-two thousand, six hundred sixty-eight".