23181966426 has 16 divisors (see below), whose sum is σ = 46411890624. Its totient is φ = 7719329184.

The previous prime is 23181966413. The next prime is 23181966449. The reversal of 23181966426 is 62466918132.

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, 1991955 + ... + 2003558.

It is an arithmetic number, because the mean of its divisors is an integer number (2900743164).

Almost surely, 2^23181966426 is an apocalyptic number.

23181966426 is an abundant number, since it is smaller than the sum of its proper divisors (23229924198).

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

23181966426 is a wasteful number, since it uses less digits than its factorization.

23181966426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996485.

The product of its digits is 746496, while the sum is 48.

The spelling of 23181966426 in words is "twenty-three billion, one hundred eighty-one million, nine hundred sixty-six thousand, four hundred twenty-six".