2689056816 has 20 divisors (see below), whose sum is σ = 6946730232. Its totient is φ = 896352256.

The previous prime is 2689056767. The next prime is 2689056817. The reversal of 2689056816 is 6186509862.

It is a super-3 number, since 3×2689056816³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2689056817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28010961 + ... + 28011056.

Almost surely, 2^2689056816 is an apocalyptic number.

It is an amenable number.

2689056816 is an abundant number, since it is smaller than the sum of its proper divisors (4257673416).

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

2689056816 is a wasteful number, since it uses less digits than its factorization.

2689056816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56022028 (or 56022022 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 2689056816 is about 51856.1164762654. The cubic root of 2689056816 is about 1390.5928523619.

The spelling of 2689056816 in words is "two billion, six hundred eighty-nine million, fifty-six thousand, eight hundred sixteen".