23391499488 has 192 divisors, whose sum is σ = 74044938240. Its totient is φ = 6316365312.

The previous prime is 23391499433. The next prime is 23391499541. The reversal of 23391499488 is 88499419332.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 5960695 + ... + 5964617.

It is an arithmetic number, because the mean of its divisors is an integer number (385650720).

Almost surely, 2^23391499488 is an apocalyptic number.

23391499488 is a gapful number since it is divisible by the number (28) 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 23391499488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37022469120).

23391499488 is an abundant number, since it is smaller than the sum of its proper divisors (50653438752).

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

23391499488 is a wasteful number, since it uses less digits than its factorization.

23391499488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 4421 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The spelling of 23391499488 in words is "twenty-three billion, three hundred ninety-one million, four hundred ninety-nine thousand, four hundred eighty-eight".