23187806780 has 48 divisors (see below), whose sum is σ = 49769627040. Its totient is φ = 9072019200.

The previous prime is 23187806773. The next prime is 23187806827. The reversal of 23187806780 is 8760878132.

It is a super-2 number, since 2×23187806780² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 165290 + ... + 271470.

It is an arithmetic number, because the mean of its divisors is an integer number (1036867230).

Almost surely, 2^23187806780 is an apocalyptic number.

23187806780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23187806780 is an abundant number, since it is smaller than the sum of its proper divisors (26581820260).

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

23187806780 is a wasteful number, since it uses less digits than its factorization.

23187806780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106430 (or 106428 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 23187806780 in words is "twenty-three billion, one hundred eighty-seven million, eight hundred six thousand, seven hundred eighty".