13997270623 has 18 divisors (see below), whose sum is σ = 16198635048. Its totient is φ = 11848216320.

The previous prime is 13997270597. The next prime is 13997270641. The reversal of 13997270623 is 32607279931.

It is not a de Polignac number, because 13997270623 - 2²¹ = 13995173471 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 (13997270653) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30362613 + ... + 30363073.

Almost surely, 2^13997270623 is an apocalyptic number.

13997270623 is a deficient number, since it is larger than the sum of its proper divisors (2201364425).

13997270623 is an frugal number, since it uses more digits than its factorization.

13997270623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 13997270623 in words is "thirteen billion, nine hundred ninety-seven million, two hundred seventy thousand, six hundred twenty-three".