23477555808 has 1008 divisors, whose sum is σ = 90431147520. Its totient is φ = 5949199872.

The previous prime is 23477555791. The next prime is 23477555813. The reversal of 23477555808 is 80855577432.

23477555808 is a `hidden beast` number, since 2 + 3 + 4 + 7 + 7 + 55 + 580 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 499522441 + ... + 499522487.

It is an arithmetic number, because the mean of its divisors is an integer number (89713440).

Almost surely, 2^23477555808 is an apocalyptic number.

23477555808 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 23477555808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45215573760).

23477555808 is an abundant number, since it is smaller than the sum of its proper divisors (66953591712).

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

23477555808 is a wasteful number, since it uses less digits than its factorization.

23477555808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 54.

The spelling of 23477555808 in words is "twenty-three billion, four hundred seventy-seven million, five hundred fifty-five thousand, eight hundred eight".