15975742742 has 16 divisors (see below), whose sum is σ = 24950528064. Its totient is φ = 7665288000.

The previous prime is 15975742663. The next prime is 15975742813. The reversal of 15975742742 is 24724757951.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591934 + ... + 1601937.

It is an arithmetic number, because the mean of its divisors is an integer number (1559408004).

Almost surely, 2^15975742742 is an apocalyptic number.

15975742742 is a deficient number, since it is larger than the sum of its proper divisors (8974785322).

15975742742 is a wasteful number, since it uses less digits than its factorization.

15975742742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193975.

The product of its digits is 4939200, while the sum is 53.

The spelling of 15975742742 in words is "fifteen billion, nine hundred seventy-five million, seven hundred forty-two thousand, seven hundred forty-two".