13897050394 has 8 divisors (see below), whose sum is σ = 21238888500. Its totient is φ = 6817420896.

The previous prime is 13897050373. The next prime is 13897050397. The reversal of 13897050394 is 49305079831.

It can be written as a sum of positive squares in 2 ways, for example, as 13758117025 + 138933369 = 117295^2 + 11787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13897050397) 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, 65552019 + ... + 65552230.

Almost surely, 2^13897050394 is an apocalyptic number.

13897050394 is a deficient number, since it is larger than the sum of its proper divisors (7341838106).

13897050394 is a wasteful number, since it uses less digits than its factorization.

13897050394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131104304.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 13897050394 in words is "thirteen billion, eight hundred ninety-seven million, fifty thousand, three hundred ninety-four".