15798111859 has 4 divisors (see below), whose sum is σ = 15911767480. Its totient is φ = 15684456240.

The previous prime is 15798111853. The next prime is 15798111871. The reversal of 15798111859 is 95811189751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95811189751 = 389 ⋅246301259.

It is a cyclic number.

It is not a de Polignac number, because 15798111859 - 2⁵ = 15798111827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15798111853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56827602 + ... + 56827879.

It is an arithmetic number, because the mean of its divisors is an integer number (3977941870).

Almost surely, 2^15798111859 is an apocalyptic number.

15798111859 is a deficient number, since it is larger than the sum of its proper divisors (113655621).

15798111859 is a wasteful number, since it uses less digits than its factorization.

15798111859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113655620.

The product of its digits is 907200, while the sum is 55.

The spelling of 15798111859 in words is "fifteen billion, seven hundred ninety-eight million, one hundred eleven thousand, eight hundred fifty-nine".