23726995890 has 32 divisors (see below), whose sum is σ = 61325159616. Its totient is φ = 5840491200.

The previous prime is 23726995879. The next prime is 23726995909. The reversal of 23726995890 is 9859962732.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30418836 + ... + 30419615.

It is an arithmetic number, because the mean of its divisors is an integer number (1916411238).

Almost surely, 2^23726995890 is an apocalyptic number.

23726995890 is an abundant number, since it is smaller than the sum of its proper divisors (37598163726).

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

23726995890 is a wasteful number, since it uses less digits than its factorization.

23726995890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60838474.

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 23726995890 in words is "twenty-three billion, seven hundred twenty-six million, nine hundred ninety-five thousand, eight hundred ninety".