15798189117 has 16 divisors (see below), whose sum is σ = 21100798080. Its totient is φ = 10513874112.

The previous prime is 15798189109. The next prime is 15798189139. The reversal of 15798189117 is 71198189751.

It is not a de Polignac number, because 15798189117 - 2³ = 15798189109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15798189107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7909963 + ... + 7911959.

It is an arithmetic number, because the mean of its divisors is an integer number (1318799880).

Almost surely, 2^15798189117 is an apocalyptic number.

It is an amenable number.

15798189117 is a deficient number, since it is larger than the sum of its proper divisors (5302608963).

15798189117 is a wasteful number, since it uses less digits than its factorization.

15798189117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252.

The product of its digits is 1270080, while the sum is 57.

The spelling of 15798189117 in words is "fifteen billion, seven hundred ninety-eight million, one hundred eighty-nine thousand, one hundred seventeen".