12109550376 has 256 divisors, whose sum is σ = 38937231360. Its totient is φ = 3047304960.

The previous prime is 12109550311. The next prime is 12109550389. The reversal of 12109550376 is 67305590121.

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, 9292941 + ... + 9294243.

It is an arithmetic number, because the mean of its divisors is an integer number (152098560).

Almost surely, 2^12109550376 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 12109550376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19468615680).

12109550376 is an abundant number, since it is smaller than the sum of its proper divisors (26827680984).

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

12109550376 is a wasteful number, since it uses less digits than its factorization.

12109550376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The spelling of 12109550376 in words is "twelve billion, one hundred nine million, five hundred fifty thousand, three hundred seventy-six".