776864331042 has 16 divisors (see below), whose sum is σ = 1645124465952. Its totient is φ = 243722143040.

The previous prime is 776864331031. The next prime is 776864331071. The reversal of 776864331042 is 240133468677.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3808158384 + ... + 3808158587.

It is an arithmetic number, because the mean of its divisors is an integer number (102820279122).

Almost surely, 2^776864331042 is an apocalyptic number.

776864331042 is an abundant number, since it is smaller than the sum of its proper divisors (868260134910).

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

776864331042 is a wasteful number, since it uses less digits than its factorization.

776864331042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616316993.

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 776864331042 in words is "seven hundred seventy-six billion, eight hundred sixty-four million, three hundred thirty-one thousand, forty-two".