12497943760 has 20 divisors (see below), whose sum is σ = 29057719428. Its totient is φ = 4999177472.

The previous prime is 12497943751. The next prime is 12497943797. The reversal of 12497943760 is 6734979421.

It can be written as a sum of positive squares in 2 ways, for example, as 8433116224 + 4064827536 = 91832^2 + 63756^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 12497943698 and 12497943707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78112069 + ... + 78112228.

Almost surely, 2^12497943760 is an apocalyptic number.

12497943760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12497943760 is an abundant number, since it is smaller than the sum of its proper divisors (16559775668).

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

12497943760 is a wasteful number, since it uses less digits than its factorization.

12497943760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156224310 (or 156224304 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 12497943760 in words is "twelve billion, four hundred ninety-seven million, nine hundred forty-three thousand, seven hundred sixty".