23294889520 has 80 divisors (see below), whose sum is σ = 62191519488. Its totient is φ = 7948926720.

The previous prime is 23294889511. The next prime is 23294889539. The reversal of 23294889520 is 2598849232.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19587 + ... + 216733.

Almost surely, 2^23294889520 is an apocalyptic number.

23294889520 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 23294889520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31095759744).

23294889520 is an abundant number, since it is smaller than the sum of its proper divisors (38896629968).

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

23294889520 is a wasteful number, since it uses less digits than its factorization.

23294889520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197378 (or 197372 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 23294889520 in words is "twenty-three billion, two hundred ninety-four million, eight hundred eighty-nine thousand, five hundred twenty".