779112081 has 64 divisors (see below), whose sum is σ = 1339545600. Its totient is φ = 442584000.

The previous prime is 779112079. The next prime is 779112167. The reversal of 779112081 is 180211977.

It is not a de Polignac number, because 779112081 - 2¹ = 779112079 is a prime.

It is a super-2 number, since 2×779112081² = 1214031269520301122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (779112001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 569260 + ... + 570626.

It is an arithmetic number, because the mean of its divisors is an integer number (20930400).

Almost surely, 2^779112081 is an apocalyptic number.

It is an amenable number.

779112081 is a deficient number, since it is larger than the sum of its proper divisors (560433519).

779112081 is a wasteful number, since it uses less digits than its factorization.

779112081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 779112081 is about 27912.5792609712. The cubic root of 779112081 is about 920.1669833164.

The spelling of 779112081 in words is "seven hundred seventy-nine million, one hundred twelve thousand, eighty-one".