12990794395 has 4 divisors (see below), whose sum is σ = 15588953280. Its totient is φ = 10392635512.

The previous prime is 12990794393. The next prime is 12990794431. The reversal of 12990794395 is 59349709921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12990794395 - 2¹ = 12990794393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12990794393) 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, 1299079435 + ... + 1299079444.

It is an arithmetic number, because the mean of its divisors is an integer number (3897238320).

Almost surely, 2^12990794395 is an apocalyptic number.

12990794395 is a deficient number, since it is larger than the sum of its proper divisors (2598158885).

12990794395 is an equidigital number, since it uses as much as digits as its factorization.

12990794395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598158884.

The product of its (nonzero) digits is 5511240, while the sum is 58.

The spelling of 12990794395 in words is "twelve billion, nine hundred ninety million, seven hundred ninety-four thousand, three hundred ninety-five".