5715644431 has 4 divisors (see below), whose sum is σ = 6532165072. Its totient is φ = 4899123792.

The previous prime is 5715644419. The next prime is 5715644461. The reversal of 5715644431 is 1344465175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5715644431 - 2⁵ = 5715644399 is a prime.

It is a super-2 number, since 2×5715644431² = 65337182523242627522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5715644461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408260310 + ... + 408260323.

It is an arithmetic number, because the mean of its divisors is an integer number (1633041268).

Almost surely, 2^5715644431 is an apocalyptic number.

5715644431 is a deficient number, since it is larger than the sum of its proper divisors (816520641).

5715644431 is an equidigital number, since it uses as much as digits as its factorization.

5715644431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816520640.

The product of its digits is 201600, while the sum is 40.

The square root of 5715644431 is about 75601.8811340035. The cubic root of 5715644431 is about 1787.9487578258.

The spelling of 5715644431 in words is "five billion, seven hundred fifteen million, six hundred forty-four thousand, four hundred thirty-one".