23931986142 has 16 divisors (see below), whose sum is σ = 50383128960. Its totient is φ = 7557469272.

The previous prime is 23931986137. The next prime is 23931986153. The reversal of 23931986142 is 24168913932.

It is a junction number, because it is equal to n+sod(n) for n = 23931986091 and 23931986100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104964738 + ... + 104964965.

It is an arithmetic number, because the mean of its divisors is an integer number (3148945560).

Almost surely, 2^23931986142 is an apocalyptic number.

23931986142 is an abundant number, since it is smaller than the sum of its proper divisors (26451142818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23931986142 is a wasteful number, since it uses less digits than its factorization.

23931986142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209929727.

The product of its digits is 559872, while the sum is 48.

The spelling of 23931986142 in words is "twenty-three billion, nine hundred thirty-one million, nine hundred eighty-six thousand, one hundred forty-two".