12450641440 has 48 divisors (see below), whose sum is σ = 29626309440. Its totient is φ = 4944418560.

The previous prime is 12450641431. The next prime is 12450641447. The reversal of 12450641440 is 4414605421.

It is not an unprimeable number, because it can be changed into a prime (12450641447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257676 + ... + 302155.

It is an arithmetic number, because the mean of its divisors is an integer number (617214780).

Almost surely, 2^12450641440 is an apocalyptic number.

12450641440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12450641440 is an abundant number, since it is smaller than the sum of its proper divisors (17175668000).

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

12450641440 is a wasteful number, since it uses less digits than its factorization.

12450641440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559985 (or 559977 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 12450641440 in words is "twelve billion, four hundred fifty million, six hundred forty-one thousand, four hundred forty".