5631342731 has 8 divisors (see below), whose sum is σ = 6451110624. Its totient is φ = 4815397440.

The previous prime is 5631342671. The next prime is 5631342763. The reversal of 5631342731 is 1372431365.

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

It is not a de Polignac number, because 5631342731 - 2²⁶ = 5564233867 is a prime.

It is a super-2 number, since 2×5631342731² = 63424041907973076722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5631342691 and 5631342700.

It is not an unprimeable number, because it can be changed into a prime (5631342781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952490 + ... + 958383.

It is an arithmetic number, because the mean of its divisors is an integer number (806388828).

Almost surely, 2^5631342731 is an apocalyptic number.

5631342731 is a deficient number, since it is larger than the sum of its proper divisors (819767893).

5631342731 is a wasteful number, since it uses less digits than its factorization.

5631342731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911301.

The product of its digits is 45360, while the sum is 35.

The square root of 5631342731 is about 75042.2729599790. The cubic root of 5631342731 is about 1779.1148579651.

The spelling of 5631342731 in words is "five billion, six hundred thirty-one million, three hundred forty-two thousand, seven hundred thirty-one".