15325989979 has 2 divisors, whose sum is σ = 15325989980. Its totient is φ = 15325989978.

The previous prime is 15325989949. The next prime is 15325990003. The reversal of 15325989979 is 97998952351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15325989979 - 2⁷ = 15325989851 is a prime.

It is not a weakly prime, because it can be changed into another prime (15325989949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7662994989 + 7662994990.

It is an arithmetic number, because the mean of its divisors is an integer number (7662994990).

Almost surely, 2^15325989979 is an apocalyptic number.

15325989979 is a deficient number, since it is larger than the sum of its proper divisors (1).

15325989979 is an equidigital number, since it uses as much as digits as its factorization.

15325989979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55112400, while the sum is 67.

The spelling of 15325989979 in words is "fifteen billion, three hundred twenty-five million, nine hundred eighty-nine thousand, nine hundred seventy-nine".