12629436391 has 16 divisors (see below), whose sum is σ = 15710169888. Its totient is φ = 9974707200.

The previous prime is 12629436383. The next prime is 12629436397. The reversal of 12629436391 is 19363492621.

It is a cyclic number.

It is not a de Polignac number, because 12629436391 - 2³ = 12629436383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12629436397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595150 + ... + 2600011.

It is an arithmetic number, because the mean of its divisors is an integer number (981885618).

Almost surely, 2^12629436391 is an apocalyptic number.

12629436391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12629436391 is a deficient number, since it is larger than the sum of its proper divisors (3080733497).

12629436391 is a wasteful number, since it uses less digits than its factorization.

12629436391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195202.

The product of its digits is 419904, while the sum is 46.

The spelling of 12629436391 in words is "twelve billion, six hundred twenty-nine million, four hundred thirty-six thousand, three hundred ninety-one".