2697958656 has 108 divisors (see below), whose sum is σ = 8188427520. Its totient is φ = 851973120.

The previous prime is 2697958643. The next prime is 2697958699. The reversal of 2697958656 is 6568597962.

It is a junction number, because it is equal to n+sod(n) for n = 2697958593 and 2697958602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12961 + ... + 74591.

Almost surely, 2^2697958656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2697958656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4094213760).

2697958656 is an abundant number, since it is smaller than the sum of its proper divisors (5490468864).

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

2697958656 is a wasteful number, since it uses less digits than its factorization.

2697958656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61672 (or 61655 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The square root of 2697958656 is about 51941.8776711047. The cubic root of 2697958656 is about 1392.1256327354.

The spelling of 2697958656 in words is "two billion, six hundred ninety-seven million, nine hundred fifty-eight thousand, six hundred fifty-six".