12649265454 has 16 divisors (see below), whose sum is σ = 28912606848. Its totient is φ = 3614075832.

The previous prime is 12649265423. The next prime is 12649265471. The reversal of 12649265454 is 45456294621.

It is a super-2 number, since 2×12649265454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150586452 + ... + 150586535.

It is an arithmetic number, because the mean of its divisors is an integer number (1807037928).

Almost surely, 2^12649265454 is an apocalyptic number.

12649265454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12649265454 is an abundant number, since it is smaller than the sum of its proper divisors (16263341394).

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

12649265454 is a wasteful number, since it uses less digits than its factorization.

12649265454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301172999.

The product of its digits is 2073600, while the sum is 48.

The spelling of 12649265454 in words is "twelve billion, six hundred forty-nine million, two hundred sixty-five thousand, four hundred fifty-four".