12630475307844 has 45 divisors (see below), whose sum is σ = 33018724596781. Its totient is φ = 4210137112320.

The previous prime is 12630475307809. The next prime is 12630475307911. The reversal of 12630475307844 is 44870357403621.

The square root of 12630475307844 is 3553938.

It is a perfect power (a square), and thus also a powerful number.

12630475307844 is a `hidden beast` number, since 1 + 2 + 6 + 30 + 4 + 7 + 530 + 78 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5390931698244 + 7239543609600 = 2321838^2 + 2690640^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 63872164 + ... + 64069604.

Almost surely, 2^{12630475307844} is an apocalyptic number.

12630475307844 is the 3553938-th square number.

It is an amenable number.

12630475307844 is an abundant number, since it is smaller than the sum of its proper divisors (20388249288937).

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

12630475307844 is an frugal number, since it uses more digits than its factorization.

12630475307844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394898 (or 197446 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 12630475307844 in words is "twelve trillion, six hundred thirty billion, four hundred seventy-five million, three hundred seven thousand, eight hundred forty-four".