23477923908 has 72 divisors (see below), whose sum is σ = 61786146968. Its totient is φ = 7510123008.

The previous prime is 23477923897. The next prime is 23477923913. The reversal of 23477923908 is 80932977432.

It can be written as a sum of positive squares in 4 ways, for example, as 12184185924 + 11293737984 = 110382^2 + 106272^2 .

It is a super-2 number, since 2×23477923908² (a number of 22 digits) contains 22 as substring.

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, 23491 + ... + 217962.

Almost surely, 2^23477923908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23477923908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30893073484).

23477923908 is an abundant number, since it is smaller than the sum of its proper divisors (38308223060).

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

23477923908 is a wasteful number, since it uses less digits than its factorization.

23477923908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241573 (or 241568 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 23477923908 in words is "twenty-three billion, four hundred seventy-seven million, nine hundred twenty-three thousand, nine hundred eight".