15742345879 has 32 divisors (see below), whose sum is σ = 17772339200. Its totient is φ = 13845012480.

The previous prime is 15742345873. The next prime is 15742345907. The reversal of 15742345879 is 97854324751.

It is not a de Polignac number, because 15742345879 - 2¹¹ = 15742343831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15742345873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20470807 + ... + 20471575.

It is an arithmetic number, because the mean of its divisors is an integer number (555385600).

Almost surely, 2^15742345879 is an apocalyptic number.

15742345879 is a deficient number, since it is larger than the sum of its proper divisors (2029993321).

15742345879 is a wasteful number, since it uses less digits than its factorization.

15742345879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535.

The product of its digits is 8467200, while the sum is 55.

It can be divided in two parts, 157423 and 45879, that added together give a palindrome (203302).

The spelling of 15742345879 in words is "fifteen billion, seven hundred forty-two million, three hundred forty-five thousand, eight hundred seventy-nine".