12251731450 has 48 divisors (see below), whose sum is σ = 26052618240. Its totient is φ = 4199152320.

The previous prime is 12251731417. The next prime is 12251731451. The reversal of 12251731450 is 5413715221.

It is not an unprimeable number, because it can be changed into a prime (12251731451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1737031 + ... + 1744069.

It is an arithmetic number, because the mean of its divisors is an integer number (542762880).

Almost surely, 2^12251731450 is an apocalyptic number.

12251731450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12251731450 is an abundant number, since it is smaller than the sum of its proper divisors (13800886790).

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

12251731450 is a wasteful number, since it uses less digits than its factorization.

12251731450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12031 (or 12026 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 12251731450 in words is "twelve billion, two hundred fifty-one million, seven hundred thirty-one thousand, four hundred fifty".