776811994 has 64 divisors (see below), whose sum is σ = 1415232000. Its totient is φ = 319401600.

The previous prime is 776811949. The next prime is 776812021. The reversal of 776811994 is 499118677.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1996752 + ... + 1997140.

It is an arithmetic number, because the mean of its divisors is an integer number (22113000).

Almost surely, 2^776811994 is an apocalyptic number.

776811994 is a deficient number, since it is larger than the sum of its proper divisors (638420006).

776811994 is a wasteful number, since it uses less digits than its factorization.

776811994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 510 counting only the distinct ones).

The product of its digits is 762048, while the sum is 52.

The square root of 776811994 is about 27871.3471866718. The cubic root of 776811994 is about 919.2605881497.

The spelling of 776811994 in words is "seven hundred seventy-six million, eight hundred eleven thousand, nine hundred ninety-four".