12273257472 has 88 divisors (see below), whose sum is σ = 37386014976. Its totient is φ = 3506638848.

The previous prime is 12273257459. The next prime is 12273257473. The reversal of 12273257472 is 27475237221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (12273257473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263868 + ... + 306875.

Almost surely, 2^12273257472 is an apocalyptic number.

12273257472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12273257472 is an abundant number, since it is smaller than the sum of its proper divisors (25112757504).

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

12273257472 is an equidigital number, since it uses as much as digits as its factorization.

12273257472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570773 (or 570755 counting only the distinct ones).

The product of its digits is 329280, while the sum is 42.

It can be divided in two parts, 12273 and 257472, that added together give a triangular number (269745 = T₇₃₄).

The spelling of 12273257472 in words is "twelve billion, two hundred seventy-three million, two hundred fifty-seven thousand, four hundred seventy-two".