23981070090 has 16 divisors (see below), whose sum is σ = 57554568288. Its totient is φ = 6394952016.

The previous prime is 23981070089. The next prime is 23981070097. The reversal of 23981070090 is 9007018932.

It is a super-2 number, since 2×23981070090² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23981070097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399684472 + ... + 399684531.

It is an arithmetic number, because the mean of its divisors is an integer number (3597160518).

Almost surely, 2^23981070090 is an apocalyptic number.

23981070090 is an abundant number, since it is smaller than the sum of its proper divisors (33573498198).

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

23981070090 is a wasteful number, since it uses less digits than its factorization.

23981070090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799369013.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 23981070090 in words is "twenty-three billion, nine hundred eighty-one million, seventy thousand, ninety".