23658878488 has 32 divisors (see below), whose sum is σ = 50726340000. Its totient is φ = 10133770752.

The previous prime is 23658878459. The next prime is 23658878491. The reversal of 23658878488 is 88487885632.

It is a super-2 number, since 2×23658878488² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) 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 7 ways as a sum of consecutive naturals, for example, 19363 + ... + 218386.

It is an arithmetic number, because the mean of its divisors is an integer number (1585198125).

Almost surely, 2^23658878488 is an apocalyptic number.

23658878488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23658878488 is an abundant number, since it is smaller than the sum of its proper divisors (27067461512).

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

23658878488 is a wasteful number, since it uses less digits than its factorization.

23658878488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239539 (or 239535 counting only the distinct ones).

The product of its digits is 165150720, while the sum is 67.

The spelling of 23658878488 in words is "twenty-three billion, six hundred fifty-eight million, eight hundred seventy-eight thousand, four hundred eighty-eight".