15798361979 has 2 divisors, whose sum is σ = 15798361980. Its totient is φ = 15798361978.

The previous prime is 15798361951. The next prime is 15798362029. The reversal of 15798361979 is 97916389751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15798361979 - 2²⁸ = 15529926523 is a prime.

It is not a weakly prime, because it can be changed into another prime (15798361079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7899180989 + 7899180990.

It is an arithmetic number, because the mean of its divisors is an integer number (7899180990).

Almost surely, 2^15798361979 is an apocalyptic number.

15798361979 is a deficient number, since it is larger than the sum of its proper divisors (1).

15798361979 is an equidigital number, since it uses as much as digits as its factorization.

15798361979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25719120, while the sum is 65.

The spelling of 15798361979 in words is "fifteen billion, seven hundred ninety-eight million, three hundred sixty-one thousand, nine hundred seventy-nine".