776668696 has 16 divisors (see below), whose sum is σ = 1462672440. Its totient is φ = 386622720.

The previous prime is 776668693. The next prime is 776668727. The reversal of 776668696 is 696866677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776668693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212025 + ... + 215656.

Almost surely, 2^776668696 is an apocalyptic number.

It is an amenable number.

776668696 is a deficient number, since it is larger than the sum of its proper divisors (686003744).

776668696 is a wasteful number, since it uses less digits than its factorization.

776668696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427914 (or 427910 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 61.

The square root of 776668696 is about 27868.7763635220. The cubic root of 776668696 is about 919.2040595407.

The spelling of 776668696 in words is "seven hundred seventy-six million, six hundred sixty-eight thousand, six hundred ninety-six".