23909967480 has 512 divisors, whose sum is σ = 86780160000. Its totient is φ = 5265469440.

The previous prime is 23909967467. The next prime is 23909967491. The reversal of 23909967480 is 8476990932.

It is a self number, because there is not a number n which added to its sum of digits gives 23909967480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 223457587 + ... + 223457693.

It is an arithmetic number, because the mean of its divisors is an integer number (169492500).

Almost surely, 2^23909967480 is an apocalyptic number.

23909967480 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 23909967480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43390080000).

23909967480 is an abundant number, since it is smaller than the sum of its proper divisors (62870192520).

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

23909967480 is a wasteful number, since it uses less digits than its factorization.

23909967480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 23909967480 in words is "twenty-three billion, nine hundred nine million, nine hundred sixty-seven thousand, four hundred eighty".