23836926990 has 128 divisors (see below), whose sum is σ = 61437864960. Its totient is φ = 5903428608.

The previous prime is 23836926989. The next prime is 23836926991. The reversal of 23836926990 is 9962963832.

It is an interprime number because it is at equal distance from previous prime (23836926989) and next prime (23836926991).

It is a self number, because there is not a number n which added to its sum of digits gives 23836926990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23836926991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21112746 + ... + 21113874.

It is an arithmetic number, because the mean of its divisors is an integer number (479983320).

Almost surely, 2^23836926990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23836926990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30718932480).

23836926990 is an abundant number, since it is smaller than the sum of its proper divisors (37600937970).

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

23836926990 is a wasteful number, since it uses less digits than its factorization.

23836926990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026.

The product of its (nonzero) digits is 7558272, while the sum is 57.

The spelling of 23836926990 in words is "twenty-three billion, eight hundred thirty-six million, nine hundred twenty-six thousand, nine hundred ninety".