15979595442 has 16 divisors (see below), whose sum is σ = 31962680352. Its totient is φ = 5325950240.

The previous prime is 15979595431. The next prime is 15979595449. The reversal of 15979595442 is 24459597951.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15979595449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83859 + ... + 197462.

It is an arithmetic number, because the mean of its divisors is an integer number (1997667522).

Almost surely, 2^15979595442 is an apocalyptic number.

15979595442 is an abundant number, since it is smaller than the sum of its proper divisors (15983084910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15979595442 is a wasteful number, since it uses less digits than its factorization.

15979595442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290793.

The product of its digits is 20412000, while the sum is 60.

The spelling of 15979595442 in words is "fifteen billion, nine hundred seventy-nine million, five hundred ninety-five thousand, four hundred forty-two".