2712956661 has 24 divisors (see below), whose sum is σ = 4154468864. Its totient is φ = 1702982880.

The previous prime is 2712956621. The next prime is 2712956707. The reversal of 2712956661 is 1666592172.

It is not a de Polignac number, because 2712956661 - 2⁹ = 2712956149 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2712956621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121081 + ... + 141726.

Almost surely, 2^2712956661 is an apocalyptic number.

It is an amenable number.

2712956661 is a deficient number, since it is larger than the sum of its proper divisors (1441512203).

2712956661 is a wasteful number, since it uses less digits than its factorization.

2712956661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262881 (or 262878 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 2712956661 is about 52086.0505413878. The cubic root of 2712956661 is about 1394.7004852789.

The spelling of 2712956661 in words is "two billion, seven hundred twelve million, nine hundred fifty-six thousand, six hundred sixty-one".