23979451608 has 96 divisors (see below), whose sum is σ = 74284423200. Its totient is φ = 6845520384.

The previous prime is 23979451549. The next prime is 23979451651. The reversal of 23979451608 is 80615497932.

23979451608 is a `hidden beast` number, since 2 + 39 + 7 + 94 + 516 + 0 + 8 = 666.

It is a Cunningham number, because it is equal to 154853²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 600060 + ... + 638772.

It is an arithmetic number, because the mean of its divisors is an integer number (773796075).

It is a 2-persistent number, because it is pandigital, and so is 2⋅23979451608 = 47958903216, but 3⋅23979451608 = 71938354824 is not.

Almost surely, 2^23979451608 is an apocalyptic number.

23979451608 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 23979451608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37142211600).

23979451608 is an abundant number, since it is smaller than the sum of its proper divisors (50304971592).

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

23979451608 is a wasteful number, since it uses less digits than its factorization.

23979451608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39961 (or 39954 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 23979451608 in words is "twenty-three billion, nine hundred seventy-nine million, four hundred fifty-one thousand, six hundred eight".