12527512640 has 56 divisors (see below), whose sum is σ = 30251351232. Its totient is φ = 4940418560.

The previous prime is 12527512633. The next prime is 12527512693. The reversal of 12527512640 is 4621572521.

It is a self number, because there is not a number n which added to its sum of digits gives 12527512640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252974 + ... + 298413.

Almost surely, 2^12527512640 is an apocalyptic number.

12527512640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12527512640 is an abundant number, since it is smaller than the sum of its proper divisors (17723838592).

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

12527512640 is an equidigital number, since it uses as much as digits as its factorization.

12527512640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551475 (or 551465 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 12527512640 in words is "twelve billion, five hundred twenty-seven million, five hundred twelve thousand, six hundred forty".