5656472739 has 12 divisors (see below), whose sum is σ = 8171343856. Its totient is φ = 3770574192.

The previous prime is 5656472699. The next prime is 5656472741. The reversal of 5656472739 is 9372746565.

5656472739 is a `hidden beast` number, since 5 + 6 + 564 + 7 + 2 + 73 + 9 = 666.

It is not a de Polignac number, because 5656472739 - 2⁸ = 5656472483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5656472749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70977 + ... + 127869.

Almost surely, 2^5656472739 is an apocalyptic number.

5656472739 is a deficient number, since it is larger than the sum of its proper divisors (2514871117).

5656472739 is a wasteful number, since it uses less digits than its factorization.

5656472739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67946 (or 67943 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 54.

The square root of 5656472739 is about 75209.5255868564. The cubic root of 5656472739 is about 1781.7573792885.

The spelling of 5656472739 in words is "five billion, six hundred fifty-six million, four hundred seventy-two thousand, seven hundred thirty-nine".