12251409457 has 32 divisors (see below), whose sum is σ = 14714929152. Its totient is φ = 9982574784.

The previous prime is 12251409451. The next prime is 12251409481. The reversal of 12251409457 is 75490415221.

It is not a de Polignac number, because 12251409457 - 2³ = 12251409449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12251409451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2023008 + ... + 2029054.

It is an arithmetic number, because the mean of its divisors is an integer number (459841536).

Almost surely, 2^12251409457 is an apocalyptic number.

It is an amenable number.

12251409457 is a deficient number, since it is larger than the sum of its proper divisors (2463519695).

12251409457 is a wasteful number, since it uses less digits than its factorization.

12251409457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 12251409457 in words is "twelve billion, two hundred fifty-one million, four hundred nine thousand, four hundred fifty-seven".