12901287625 has 8 divisors (see below), whose sum is σ = 16100807112. Its totient is φ = 10321030000.

The previous prime is 12901287617. The next prime is 12901287643. The reversal of 12901287625 is 52678210921.

It can be written as a sum of positive squares in 4 ways, for example, as 44675856 + 12856611769 = 6684^2 + 113387^2 .

It is not a de Polignac number, because 12901287625 - 2³ = 12901287617 is a prime.

It is a Duffinian number.

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, 51605026 + ... + 51605275.

It is an arithmetic number, because the mean of its divisors is an integer number (2012600889).

Almost surely, 2^12901287625 is an apocalyptic number.

It is an amenable number.

12901287625 is a deficient number, since it is larger than the sum of its proper divisors (3199519487).

12901287625 is an equidigital number, since it uses as much as digits as its factorization.

12901287625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103210316 (or 103210306 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 12901287625 in words is "twelve billion, nine hundred one million, two hundred eighty-seven thousand, six hundred twenty-five".