2636897684 has 12 divisors (see below), whose sum is σ = 4679565408. Its totient is φ = 1299879000.

The previous prime is 2636897671. The next prime is 2636897713. The reversal of 2636897684 is 4867986362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4642142 + ... + 4642709.

It is an arithmetic number, because the mean of its divisors is an integer number (389963784).

Almost surely, 2^2636897684 is an apocalyptic number.

It is an amenable number.

2636897684 is a deficient number, since it is larger than the sum of its proper divisors (2042667724).

2636897684 is a wasteful number, since it uses less digits than its factorization.

2636897684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9284926 (or 9284924 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 59.

The square root of 2636897684 is about 51350.7320687836. The cubic root of 2636897684 is about 1381.5430621747.

The spelling of 2636897684 in words is "two billion, six hundred thirty-six million, eight hundred ninety-seven thousand, six hundred eighty-four".