23742491831 has 4 divisors (see below), whose sum is σ = 23763084912. Its totient is φ = 23721898752.

The previous prime is 23742491807. The next prime is 23742491863. The reversal of 23742491831 is 13819424732.

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 23742491831 - 2⁶ = 23742491767 is a prime.

It is a super-2 number, since 2×23742491831² (a number of 22 digits) 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 (23742491231) 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 3 ways as a sum of consecutive naturals, for example, 10294811 + ... + 10297116.

It is an arithmetic number, because the mean of its divisors is an integer number (5940771228).

Almost surely, 2^23742491831 is an apocalyptic number.

23742491831 is a deficient number, since it is larger than the sum of its proper divisors (20593081).

23742491831 is a wasteful number, since it uses less digits than its factorization.

23742491831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20593080.

The product of its digits is 290304, while the sum is 44.

The spelling of 23742491831 in words is "twenty-three billion, seven hundred forty-two million, four hundred ninety-one thousand, eight hundred thirty-one".