12549970036 has 24 divisors (see below), whose sum is σ = 22018630536. Its totient is φ = 6258954240.

The previous prime is 12549970021. The next prime is 12549970049. The reversal of 12549970036 is 63007994521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4025141136 + 8524828900 = 63444^2 + 92330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3999060 + ... + 4002196.

It is an arithmetic number, because the mean of its divisors is an integer number (917442939).

Almost surely, 2^12549970036 is an apocalyptic number.

It is an amenable number.

12549970036 is a deficient number, since it is larger than the sum of its proper divisors (9468660500).

12549970036 is a wasteful number, since it uses less digits than its factorization.

12549970036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379 (or 5377 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 12549970036 in words is "twelve billion, five hundred forty-nine million, nine hundred seventy thousand, thirty-six".