12642367456 has 24 divisors (see below), whose sum is σ = 24895483704. Its totient is φ = 6319704960.

The previous prime is 12642367411. The next prime is 12642367457. The reversal of 12642367456 is 65476324621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642367457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99811 + ... + 187741.

It is an arithmetic number, because the mean of its divisors is an integer number (1037311821).

Almost surely, 2^12642367456 is an apocalyptic number.

12642367456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12642367456 is a deficient number, since it is larger than the sum of its proper divisors (12253116248).

12642367456 is an equidigital number, since it uses as much as digits as its factorization.

12642367456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92434 (or 92426 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The spelling of 12642367456 in words is "twelve billion, six hundred forty-two million, three hundred sixty-seven thousand, four hundred fifty-six".