779908878055 has 32 divisors (see below), whose sum is σ = 971419046400. Its totient is φ = 600466728960.

The previous prime is 779908878043. The next prime is 779908878061. The reversal of 779908878055 is 550878809977.

It is not a de Polignac number, because 779908878055 - 2²¹ = 779906780903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93097027 + ... + 93105403.

It is an arithmetic number, because the mean of its divisors is an integer number (30356845200).

Almost surely, 2^779908878055 is an apocalyptic number.

779908878055 is a deficient number, since it is larger than the sum of its proper divisors (191510168345).

779908878055 is a wasteful number, since it uses less digits than its factorization.

779908878055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11659.

The product of its (nonzero) digits is 355622400, while the sum is 73.

The spelling of 779908878055 in words is "seven hundred seventy-nine billion, nine hundred eight million, eight hundred seventy-eight thousand, fifty-five".