12491631360 has 432 divisors, whose sum is σ = 46873008000. Its totient is φ = 3053223936.

The previous prime is 12491631359. The next prime is 12491631379. The reversal of 12491631360 is 6313619421.

12491631360 is a `hidden beast` number, since 12 + 4 + 9 + 1 + 631 + 3 + 6 + 0 = 666.

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

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, 35792466 + ... + 35792814.

Almost surely, 2^12491631360 is an apocalyptic number.

12491631360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12491631360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23436504000).

12491631360 is an abundant number, since it is smaller than the sum of its proper divisors (34381376640).

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

12491631360 is a wasteful number, since it uses less digits than its factorization.

12491631360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 12491631360 in words is "twelve billion, four hundred ninety-one million, six hundred thirty-one thousand, three hundred sixty".