12171763904 has 112 divisors (see below), whose sum is σ = 26469027072. Its totient is φ = 5529894912.

The previous prime is 12171763883. The next prime is 12171763909. The reversal of 12171763904 is 40936717121.

It is not an unprimeable number, because it can be changed into a prime (12171763909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5513969 + ... + 5516175.

Almost surely, 2^12171763904 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 12171763904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13234513536).

12171763904 is an abundant number, since it is smaller than the sum of its proper divisors (14297263168).

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

12171763904 is a wasteful number, since it uses less digits than its factorization.

12171763904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 12171763904 in words is "twelve billion, one hundred seventy-one million, seven hundred sixty-three thousand, nine hundred four".