23915111344949 has 16 divisors (see below), whose sum is σ = 26192016890496. Its totient is φ = 21655348224000.

The previous prime is 23915111344939. The next prime is 23915111344981. The reversal of 23915111344949 is 94944311151932.

It is a cyclic number.

It is not a de Polignac number, because 23915111344949 - 2¹² = 23915111340853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23915111344894 and 23915111344903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23915111344919) 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, 60302984 + ... + 60698270.

It is an arithmetic number, because the mean of its divisors is an integer number (1637001055656).

Almost surely, 2^{23915111344949} is an apocalyptic number.

It is an amenable number.

23915111344949 is a deficient number, since it is larger than the sum of its proper divisors (2276905545547).

23915111344949 is a wasteful number, since it uses less digits than its factorization.

23915111344949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416956.

The product of its digits is 4199040, while the sum is 56.

The spelling of 23915111344949 in words is "twenty-three trillion, nine hundred fifteen billion, one hundred eleven million, three hundred forty-four thousand, nine hundred forty-nine".