23811279648 has 48 divisors (see below), whose sum is σ = 67312659456. Its totient is φ = 7326547200.

The previous prime is 23811279647. The next prime is 23811279689. The reversal of 23811279648 is 84697211832.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 23811279648.

It is not an unprimeable number, because it can be changed into a prime (23811279643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9538528 + ... + 9541023.

It is an arithmetic number, because the mean of its divisors is an integer number (1402347072).

Almost surely, 2^23811279648 is an apocalyptic number.

It is an amenable number.

23811279648 is an abundant number, since it is smaller than the sum of its proper divisors (43501379808).

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

23811279648 is a wasteful number, since it uses less digits than its factorization.

23811279648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19079577 (or 19079569 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The spelling of 23811279648 in words is "twenty-three billion, eight hundred eleven million, two hundred seventy-nine thousand, six hundred forty-eight".