776273864 has 32 divisors (see below), whose sum is σ = 1465128000. Its totient is φ = 385584192.

The previous prime is 776273863. The next prime is 776273909. The reversal of 776273864 is 468372677.

It is a super-2 number, since 2×776273864² = 1205202223858980992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (776273863) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1524842 + ... + 1525350.

It is an arithmetic number, because the mean of its divisors is an integer number (45785250).

Almost surely, 2^776273864 is an apocalyptic number.

It is an amenable number.

776273864 is a deficient number, since it is larger than the sum of its proper divisors (688854136).

776273864 is a wasteful number, since it uses less digits than its factorization.

776273864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1393 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 50.

The square root of 776273864 is about 27861.6916930756. The cubic root of 776273864 is about 919.0482690914.

The spelling of 776273864 in words is "seven hundred seventy-six million, two hundred seventy-three thousand, eight hundred sixty-four".