23511256280988 has 96 divisors (see below), whose sum is σ = 66001588079616. Its totient is φ = 6368574170112.

The previous prime is 23511256280923. The next prime is 23511256281047. The reversal of 23511256280988 is 88908265211532.

It is a super-2 number, since 2×23511256280988² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53628531 + ... + 54065162.

It is an arithmetic number, because the mean of its divisors is an integer number (687516542496).

Almost surely, 2^{23511256280988} is an apocalyptic number.

23511256280988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23511256280988 is an abundant number, since it is smaller than the sum of its proper divisors (42490331798628).

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

23511256280988 is a wasteful number, since it uses less digits than its factorization.

23511256280988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107693843 (or 107693841 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 23511256280988 in words is "twenty-three trillion, five hundred eleven billion, two hundred fifty-six million, two hundred eighty thousand, nine hundred eighty-eight".