23321996887 has 18 divisors (see below), whose sum is σ = 26881440008. Its totient is φ = 19820929632.

The previous prime is 23321996833. The next prime is 23321996891. The reversal of 23321996887 is 78869912332.

It is a de Polignac number, because none of the positive numbers 2^k-23321996887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23321996827) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79597113 + ... + 79597405.

Almost surely, 2^23321996887 is an apocalyptic number.

23321996887 is a deficient number, since it is larger than the sum of its proper divisors (3559443121).

23321996887 is an frugal number, since it uses more digits than its factorization.

23321996887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 497 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 58.

The spelling of 23321996887 in words is "twenty-three billion, three hundred twenty-one million, nine hundred ninety-six thousand, eight hundred eighty-seven".