13942072593 has 30 divisors (see below), whose sum is σ = 20970468134. Its totient is φ = 9231143616.

The previous prime is 13942072583. The next prime is 13942072597. The reversal of 13942072593 is 39527024931.

13942072593 is a `hidden beast` number, since 1 + 39 + 4 + 20 + 7 + 2 + 593 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1340438544 + 12601634049 = 36612^2 + 112257^2 .

It is not a de Polignac number, because 13942072593 - 2⁸ = 13942072337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13942072597) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1794405 + ... + 1802157.

Almost surely, 2^13942072593 is an apocalyptic number.

It is an amenable number.

13942072593 is a deficient number, since it is larger than the sum of its proper divisors (7028395541).

13942072593 is an frugal number, since it uses more digits than its factorization.

13942072593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063 (or 7905 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 13942072593 in words is "thirteen billion, nine hundred forty-two million, seventy-two thousand, five hundred ninety-three".