10642531731 has 16 divisors (see below), whose sum is σ = 16085879040. Its totient is φ = 6204552480.

The previous prime is 10642531727. The next prime is 10642531747. The reversal of 10642531731 is 13713524601.

It is not a de Polignac number, because 10642531731 - 2² = 10642531727 is a prime.

It is a super-2 number, since 2×10642531731² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10642531692 and 10642531701.

It is not an unprimeable number, because it can be changed into a prime (10642531751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7180455 + ... + 7181936.

It is an arithmetic number, because the mean of its divisors is an integer number (1005367440).

Almost surely, 2^10642531731 is an apocalyptic number.

10642531731 is a deficient number, since it is larger than the sum of its proper divisors (5443347309).

10642531731 is a wasteful number, since it uses less digits than its factorization.

10642531731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14362426.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 10642531731 in words is "ten billion, six hundred forty-two million, five hundred thirty-one thousand, seven hundred thirty-one".