776868042 has 8 divisors (see below), whose sum is σ = 1553736096. Its totient is φ = 258956012.

The previous prime is 776867983. The next prime is 776868083. The reversal of 776868042 is 240868677.

It is a sphenic number, since it is the product of 3 distinct primes.

776868042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 776867982 and 776868000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64738998 + ... + 64739009.

It is an arithmetic number, because the mean of its divisors is an integer number (194217012).

Almost surely, 2^776868042 is an apocalyptic number.

776868042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

776868042 is a wasteful number, since it uses less digits than its factorization.

776868042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129478012.

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 776868042 is about 27872.3526455877. The cubic root of 776868042 is about 919.2826962354.

The spelling of 776868042 in words is "seven hundred seventy-six million, eight hundred sixty-eight thousand, forty-two".