12515381046 has 96 divisors (see below), whose sum is σ = 32640910848. Its totient is φ = 3388302720.

The previous prime is 12515381033. The next prime is 12515381093. The reversal of 12515381046 is 64018351521.

12515381046 is a `hidden beast` number, since 1 + 2 + 515 + 38 + 104 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12515381046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289906 + ... + 330266.

It is an arithmetic number, because the mean of its divisors is an integer number (340009488).

Almost surely, 2^12515381046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12515381046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16320455424).

12515381046 is an abundant number, since it is smaller than the sum of its proper divisors (20125529802).

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

12515381046 is a wasteful number, since it uses less digits than its factorization.

12515381046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40506 (or 40503 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 12515381046 in words is "twelve billion, five hundred fifteen million, three hundred eighty-one thousand, forty-six".