23325861820 has 24 divisors (see below), whose sum is σ = 49157411184. Its totient is φ = 9297373056.

The previous prime is 23325861809. The next prime is 23325861833. The reversal of 23325861820 is 2816852332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054929 + ... + 2066248.

It is an arithmetic number, because the mean of its divisors is an integer number (2048225466).

Almost surely, 2^23325861820 is an apocalyptic number.

23325861820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23325861820 is an abundant number, since it is smaller than the sum of its proper divisors (25831549364).

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

23325861820 is a wasteful number, since it uses less digits than its factorization.

23325861820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121469 (or 4121467 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 23325861820 in words is "twenty-three billion, three hundred twenty-five million, eight hundred sixty-one thousand, eight hundred twenty".