768137106778 has 16 divisors (see below), whose sum is σ = 1182379413600. Its totient is φ = 374061821616.

The previous prime is 768137106733. The next prime is 768137106797. The reversal of 768137106778 is 877601731867.

It is a super-2 number, since 2×768137106778² (a number of 25 digits) contains 22 as substring.

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, 12766300 + ... + 12826327.

It is an arithmetic number, because the mean of its divisors is an integer number (73898713350).

Almost surely, 2^768137106778 is an apocalyptic number.

768137106778 is a deficient number, since it is larger than the sum of its proper divisors (414242306822).

768137106778 is a wasteful number, since it uses less digits than its factorization.

768137106778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25593021.

The product of its (nonzero) digits is 16595712, while the sum is 61.

The spelling of 768137106778 in words is "seven hundred sixty-eight billion, one hundred thirty-seven million, one hundred six thousand, seven hundred seventy-eight".