2691727956 has 24 divisors (see below), whose sum is σ = 6978554240. Its totient is φ = 897242616.

The previous prime is 2691727939. The next prime is 2691727957. The reversal of 2691727956 is 6597271962.

It is a super-2 number, since 2×2691727956² = 14490798778223875872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691727957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12461596 + ... + 12461811.

Almost surely, 2^2691727956 is an apocalyptic number.

It is an amenable number.

2691727956 is an abundant number, since it is smaller than the sum of its proper divisors (4286826284).

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

2691727956 is a wasteful number, since it uses less digits than its factorization.

2691727956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24923420 (or 24923412 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 2691727956 is about 51881.8653866647. The cubic root of 2691727956 is about 1391.0531424955.

The spelling of 2691727956 in words is "two billion, six hundred ninety-one million, seven hundred twenty-seven thousand, nine hundred fifty-six".