77825412376 has 8 divisors (see below), whose sum is σ = 145922648220. Its totient is φ = 38912706184.

The previous prime is 77825412359. The next prime is 77825412397. The reversal of 77825412376 is 67321452877.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×77825412376² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864088266 + ... + 4864088281.

Almost surely, 2^77825412376 is an apocalyptic number.

It is an amenable number.

77825412376 is a deficient number, since it is larger than the sum of its proper divisors (68097235844).

77825412376 is a wasteful number, since it uses less digits than its factorization.

77825412376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9728176553 (or 9728176549 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 52.

The spelling of 77825412376 in words is "seventy-seven billion, eight hundred twenty-five million, four hundred twelve thousand, three hundred seventy-six".