12398842635 has 32 divisors (see below), whose sum is σ = 21446664960. Its totient is φ = 6095357568.

The previous prime is 12398842627. The next prime is 12398842649. The reversal of 12398842635 is 53624889321.

It is a happy number.

It is not a de Polignac number, because 12398842635 - 2³ = 12398842627 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577357 + ... + 598446.

It is an arithmetic number, because the mean of its divisors is an integer number (670208280).

Almost surely, 2^12398842635 is an apocalyptic number.

12398842635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12398842635 is a deficient number, since it is larger than the sum of its proper divisors (9047822325).

12398842635 is a wasteful number, since it uses less digits than its factorization.

12398842635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175867.

The product of its digits is 2488320, while the sum is 51.

The spelling of 12398842635 in words is "twelve billion, three hundred ninety-eight million, eight hundred forty-two thousand, six hundred thirty-five".