23659669488 has 320 divisors, whose sum is σ = 82404725760. Its totient is φ = 5669830656.

The previous prime is 23659669457. The next prime is 23659669531. The reversal of 23659669488 is 88496695632.

It is a Cunningham number, because it is equal to 153817²-1.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2147931 + ... + 2158917.

It is an arithmetic number, because the mean of its divisors is an integer number (257514768).

Almost surely, 2^23659669488 is an apocalyptic number.

23659669488 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 23659669488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41202362880).

23659669488 is an abundant number, since it is smaller than the sum of its proper divisors (58745056272).

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

23659669488 is a wasteful number, since it uses less digits than its factorization.

23659669488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11064 (or 11058 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 66.

The spelling of 23659669488 in words is "twenty-three billion, six hundred fifty-nine million, six hundred sixty-nine thousand, four hundred eighty-eight".