5656737893 has 8 divisors (see below), whose sum is σ = 5956629600. Its totient is φ = 5357063088.

The previous prime is 5656737881. The next prime is 5656737907. The reversal of 5656737893 is 3987376565.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5656737893 - 2²⁰ = 5655689317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656737833) 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, 755 + ... + 106367.

It is an arithmetic number, because the mean of its divisors is an integer number (744578700).

Almost surely, 2^5656737893 is an apocalyptic number.

It is an amenable number.

5656737893 is a deficient number, since it is larger than the sum of its proper divisors (299891707).

5656737893 is a wasteful number, since it uses less digits than its factorization.

5656737893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108451.

The product of its digits is 28576800, while the sum is 59.

The square root of 5656737893 is about 75211.2883349301. The cubic root of 5656737893 is about 1781.7852195307.

The spelling of 5656737893 in words is "five billion, six hundred fifty-six million, seven hundred thirty-seven thousand, eight hundred ninety-three".