12915737280 has 224 divisors, whose sum is σ = 45970545600. Its totient is φ = 3413458944.

The previous prime is 12915737257. The next prime is 12915737299. The reversal of 12915737280 is 8273751921.

12915737280 is a `hidden beast` number, since 1 + 2 + 9 + 1 + 573 + 72 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 969706 + ... + 982934.

It is an arithmetic number, because the mean of its divisors is an integer number (205225650).

Almost surely, 2^12915737280 is an apocalyptic number.

12915737280 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 12915737280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22985272800).

12915737280 is an abundant number, since it is smaller than the sum of its proper divisors (33054808320).

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

12915737280 is a wasteful number, since it uses less digits than its factorization.

12915737280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368 (or 13352 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 12915737280 in words is "twelve billion, nine hundred fifteen million, seven hundred thirty-seven thousand, two hundred eighty".