15339977993293 has 2 divisors, whose sum is σ = 15339977993294. Its totient is φ = 15339977993292.

The previous prime is 15339977993269. The next prime is 15339977993363. The reversal of 15339977993293 is 39239977993351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12163890856329 + 3176087136964 = 3487677^2 + 1782158^2 .

It is a cyclic number.

It is not a de Polignac number, because 15339977993293 - 2²⁹ = 15339441122381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15339977993993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7669988996646 + 7669988996647.

It is an arithmetic number, because the mean of its divisors is an integer number (7669988996647).

Almost surely, 2^{15339977993293} is an apocalyptic number.

It is an amenable number.

15339977993293 is a deficient number, since it is larger than the sum of its proper divisors (1).

15339977993293 is an equidigital number, since it uses as much as digits as its factorization.

15339977993293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2343654810, while the sum is 79.

The spelling of 15339977993293 in words is "fifteen trillion, three hundred thirty-nine billion, nine hundred seventy-seven million, nine hundred ninety-three thousand, two hundred ninety-three".