12272744450 has 18 divisors (see below), whose sum is σ = 22828761801. Its totient is φ = 4908784440.

The previous prime is 12272744447. The next prime is 12272744507. The reversal of 12272744450 is 5444727221.

It can be written as a sum of positive squares in 2 ways, for example, as 12027289561 + 245454889 = 109669^2 + 15667^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78335.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 775517 + ... + 791183.

Almost surely, 2^12272744450 is an apocalyptic number.

12272744450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12272744450 is a deficient number, since it is larger than the sum of its proper divisors (10556017351).

12272744450 is an frugal number, since it uses more digits than its factorization.

12272744450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31346 (or 15674 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 12272744450 in words is "twelve billion, two hundred seventy-two million, seven hundred forty-four thousand, four hundred fifty".