23840326811964 has 288 divisors, whose sum is σ = 61684761600000. Its totient is φ = 7160926825728.

The previous prime is 23840326811941. The next prime is 23840326812017. The reversal of 23840326811964 is 46911862304832.

It is a super-2 number, since 2×23840326811964² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13553340117 + ... + 13553341875.

It is an arithmetic number, because the mean of its divisors is an integer number (214183200000).

Almost surely, 2^{23840326811964} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23840326811964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30842380800000).

23840326811964 is an abundant number, since it is smaller than the sum of its proper divisors (37844434788036).

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

23840326811964 is a wasteful number, since it uses less digits than its factorization.

23840326811964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 23840326811964 in words is "twenty-three trillion, eight hundred forty billion, three hundred twenty-six million, eight hundred eleven thousand, nine hundred sixty-four".