23391159880 has 64 divisors (see below), whose sum is σ = 59394513600. Its totient is φ = 8212565760.

The previous prime is 23391159871. The next prime is 23391159881. The reversal of 23391159880 is 8895119332.

It is a super-2 number, since 2×23391159880² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23391159881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903822 + ... + 929341.

It is an arithmetic number, because the mean of its divisors is an integer number (928039275).

Almost surely, 2^23391159880 is an apocalyptic number.

23391159880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23391159880 is an abundant number, since it is smaller than the sum of its proper divisors (36003353720).

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

23391159880 is a wasteful number, since it uses less digits than its factorization.

23391159880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833214 (or 1833210 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 23391159880 in words is "twenty-three billion, three hundred ninety-one million, one hundred fifty-nine thousand, eight hundred eighty".