23407657500 has 120 divisors (see below), whose sum is σ = 68515767936. Its totient is φ = 6217784000.

The previous prime is 23407657499. The next prime is 23407657513. The reversal of 23407657500 is 575670432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1966567 + ... + 1978433.

Almost surely, 2^23407657500 is an apocalyptic number.

23407657500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23407657500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34257883968).

23407657500 is an abundant number, since it is smaller than the sum of its proper divisors (45108110436).

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

23407657500 is a wasteful number, since it uses less digits than its factorization.

23407657500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12157 (or 12140 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 23407657500 in words is "twenty-three billion, four hundred seven million, six hundred fifty-seven thousand, five hundred".