12446012736 has 42 divisors (see below), whose sum is σ = 35674249962. Its totient is φ = 4148670720.

The previous prime is 12446012729. The next prime is 12446012743. The reversal of 12446012736 is 63721064421.

12446012736 is a `hidden beast` number, since 1 + 2 + 44 + 601 + 2 + 7 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (12446012729) and next prime (12446012743).

It can be written as a sum of positive squares in only one way, i.e., 7949505600 + 4496507136 = 89160^2 + 67056^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12446012736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10803255 + ... + 10804406.

Almost surely, 2^12446012736 is an apocalyptic number.

12446012736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12446012736 is an abundant number, since it is smaller than the sum of its proper divisors (23228237226).

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

12446012736 is a wasteful number, since it uses less digits than its factorization.

12446012736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607679 (or 21607666 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 12446012736 in words is "twelve billion, four hundred forty-six million, twelve thousand, seven hundred thirty-six".