15314997389 has 2 divisors, whose sum is σ = 15314997390. Its totient is φ = 15314997388.

The previous prime is 15314997359. The next prime is 15314997421. The reversal of 15314997389 is 98379941351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11037183364 + 4277814025 = 105058^2 + 65405^2 .

It is a cyclic number.

It is not a de Polignac number, because 15314997389 - 2²⁰ = 15313948813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15314997319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7657498694 + 7657498695.

It is an arithmetic number, because the mean of its divisors is an integer number (7657498695).

Almost surely, 2^15314997389 is an apocalyptic number.

It is an amenable number.

15314997389 is a deficient number, since it is larger than the sum of its proper divisors (1).

15314997389 is an equidigital number, since it uses as much as digits as its factorization.

15314997389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7348320, while the sum is 59.

The spelling of 15314997389 in words is "fifteen billion, three hundred fourteen million, nine hundred ninety-seven thousand, three hundred eighty-nine".