12515001280 has 28 divisors (see below), whose sum is σ = 29801347560. Its totient is φ = 5006000384.

The previous prime is 12515001269. The next prime is 12515001319. The reversal of 12515001280 is 8210051521.

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, 19554370 + ... + 19555009.

Almost surely, 2^12515001280 is an apocalyptic number.

12515001280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12515001280 is an abundant number, since it is smaller than the sum of its proper divisors (17286346280).

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

12515001280 is an equidigital number, since it uses as much as digits as its factorization.

12515001280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39109396 (or 39109386 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 12515001280 in words is "twelve billion, five hundred fifteen million, one thousand, two hundred eighty".