23118757640 has 64 divisors (see below), whose sum is σ = 60084063360. Its totient is φ = 7912299520.

The previous prime is 23118757639. The next prime is 23118757723. The reversal of 23118757640 is 4675781132.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 23118757591 and 23118757600.

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, 1537892 + ... + 1552851.

It is an arithmetic number, because the mean of its divisors is an integer number (938813490).

Almost surely, 2^23118757640 is an apocalyptic number.

23118757640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23118757640 is an abundant number, since it is smaller than the sum of its proper divisors (36965305720).

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

23118757640 is a wasteful number, since it uses less digits than its factorization.

23118757640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090782 (or 3090778 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 23118757640 in words is "twenty-three billion, one hundred eighteen million, seven hundred fifty-seven thousand, six hundred forty".