5431408731 has 48 divisors (see below), whose sum is σ = 9033762816. Its totient is φ = 3080360448.

The previous prime is 5431408721. The next prime is 5431408757. The reversal of 5431408731 is 1378041345.

It is a happy number.

5431408731 is a `hidden beast` number, since 543 + 1 + 4 + 0 + 87 + 31 = 666.

It is not a de Polignac number, because 5431408731 - 2⁵ = 5431408699 is a prime.

It is a super-2 number, since 2×5431408731² = 59000401606366060722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5431408721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6293206 + ... + 6294068.

It is an arithmetic number, because the mean of its divisors is an integer number (188203392).

Almost surely, 2^5431408731 is an apocalyptic number.

5431408731 is a deficient number, since it is larger than the sum of its proper divisors (3602354085).

5431408731 is a wasteful number, since it uses less digits than its factorization.

5431408731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 5431408731 is about 73698.0917731253. The cubic root of 5431408731 is about 1757.8055392232.

The spelling of 5431408731 in words is "five billion, four hundred thirty-one million, four hundred eight thousand, seven hundred thirty-one".