776078864 has 40 divisors (see below), whose sum is σ = 1726690080. Its totient is φ = 334195200.

The previous prime is 776078851. The next prime is 776078869. The reversal of 776078864 is 468870677.

It is not an unprimeable number, because it can be changed into a prime (776078869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112697 + ... + 119384.

It is an arithmetic number, because the mean of its divisors is an integer number (43167252).

Almost surely, 2^776078864 is an apocalyptic number.

It is an amenable number.

776078864 is an abundant number, since it is smaller than the sum of its proper divisors (950611216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

776078864 is a wasteful number, since it uses less digits than its factorization.

776078864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232119 (or 232113 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 53.

The square root of 776078864 is about 27858.1920447110. The cubic root of 776078864 is about 918.9713076696.

The spelling of 776078864 in words is "seven hundred seventy-six million, seventy-eight thousand, eight hundred sixty-four".