23188189651 has 6 divisors (see below), whose sum is σ = 25487844956. Its totient is φ = 21080172300.

The previous prime is 23188189643. The next prime is 23188189681. The reversal of 23188189651 is 15698188132.

It is not a de Polignac number, because 23188189651 - 2³ = 23188189643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23188189621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95818845 + ... + 95819086.

Almost surely, 2^23188189651 is an apocalyptic number.

23188189651 is a deficient number, since it is larger than the sum of its proper divisors (2299655305).

23188189651 is a wasteful number, since it uses less digits than its factorization.

23188189651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191637953 (or 191637942 counting only the distinct ones).

The product of its digits is 829440, while the sum is 52.

The spelling of 23188189651 in words is "twenty-three billion, one hundred eighty-eight million, one hundred eighty-nine thousand, six hundred fifty-one".