2695864656 has 40 divisors (see below), whose sum is σ = 7188976384. Its totient is φ = 869633280.

The previous prime is 2695864649. The next prime is 2695864667. The reversal of 2695864656 is 6564685962.

It is a junction number, because it is equal to n+sod(n) for n = 2695864596 and 2695864605.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 904381 + ... + 907356.

Almost surely, 2^2695864656 is an apocalyptic number.

It is an amenable number.

2695864656 is an abundant number, since it is smaller than the sum of its proper divisors (4493111728).

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

2695864656 is a wasteful number, since it uses less digits than its factorization.

2695864656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811779 (or 1811773 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 57.

The square root of 2695864656 is about 51921.7166126083. The cubic root of 2695864656 is about 1391.7653769578.

The spelling of 2695864656 in words is "two billion, six hundred ninety-five million, eight hundred sixty-four thousand, six hundred fifty-six".