23491622320 has 80 divisors (see below), whose sum is σ = 55937044800. Its totient is φ = 9172352000.

The previous prime is 23491622279. The next prime is 23491622327. The reversal of 23491622320 is 2322619432.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (23491622327) 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, 553206 + ... + 594154.

It is an arithmetic number, because the mean of its divisors is an integer number (699213060).

Almost surely, 2^23491622320 is an apocalyptic number.

23491622320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23491622320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27968522400).

23491622320 is an abundant number, since it is smaller than the sum of its proper divisors (32445422480).

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

23491622320 is a wasteful number, since it uses less digits than its factorization.

23491622320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41134 (or 41128 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 23491622320 in words is "twenty-three billion, four hundred ninety-one million, six hundred twenty-two thousand, three hundred twenty".