23918122136448 has 128 divisors (see below), whose sum is σ = 70775996313600. Its totient is φ = 7951890470400.

The previous prime is 23918122136401. The next prime is 23918122136479. The reversal of 23918122136448 is 84463122181932.

It is a happy number.

23918122136448 is a `hidden beast` number, since 2 + 3 + 9 + 18 + 1 + 221 + 364 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23918122136394 and 23918122136403.

It is a congruent number.

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, 7711278 + ... + 10358573.

It is an arithmetic number, because the mean of its divisors is an integer number (552937471200).

Almost surely, 2^{23918122136448} is an apocalyptic number.

It is an amenable number.

23918122136448 is an abundant number, since it is smaller than the sum of its proper divisors (46857874177152).

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

23918122136448 is a wasteful number, since it uses less digits than its factorization.

23918122136448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18070257 (or 18070239 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 23918122136448 in words is "twenty-three trillion, nine hundred eighteen billion, one hundred twenty-two million, one hundred thirty-six thousand, four hundred forty-eight".