12254577458 has 6 divisors (see below), whose sum is σ = 18382101021. Its totient is φ = 6127210452.

The previous prime is 12254577457. The next prime is 12254577487. The reversal of 12254577458 is 85477545221.

It can be written as a sum of positive squares in 2 ways, for example, as 7539969889 + 4714607569 = 86833^2 + 68663^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78277.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12254577457) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 117416 + ... + 195692.

Almost surely, 2^12254577458 is an apocalyptic number.

12254577458 is a deficient number, since it is larger than the sum of its proper divisors (6127523563).

12254577458 is an frugal number, since it uses more digits than its factorization.

12254577458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156556 (or 78279 counting only the distinct ones).

The product of its digits is 3136000, while the sum is 50.

Multiplying 12254577458 by its sum of digits (50), we get a square (612728872900 = 782770²).

The spelling of 12254577458 in words is "twelve billion, two hundred fifty-four million, five hundred seventy-seven thousand, four hundred fifty-eight".