12642367455 has 96 divisors (see below), whose sum is σ = 23289057792. Its totient is φ = 6334848000.

The previous prime is 12642367411. The next prime is 12642367457. The reversal of 12642367455 is 55476324621.

12642367455 is a `hidden beast` number, since 126 + 42 + 36 + 7 + 455 = 666.

It is not a de Polignac number, because 12642367455 - 2⁶ = 12642367391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12642367455.

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 95 ways as a sum of consecutive naturals, for example, 7466589 + ... + 7468281.

It is an arithmetic number, because the mean of its divisors is an integer number (242594352).

Almost surely, 2^12642367455 is an apocalyptic number.

12642367455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12642367455 is a deficient number, since it is larger than the sum of its proper divisors (10646690337).

12642367455 is a wasteful number, since it uses less digits than its factorization.

12642367455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1886 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 12642367455 in words is "twelve billion, six hundred forty-two million, three hundred sixty-seven thousand, four hundred fifty-five".