15444045842 has 16 divisors (see below), whose sum is σ = 25445568960. Its totient is φ = 6997530672.

The previous prime is 15444045833. The next prime is 15444045863. The reversal of 15444045842 is 24854044451.

It is a self number, because there is not a number n which added to its sum of digits gives 15444045842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8834393 + ... + 8836140.

It is an arithmetic number, because the mean of its divisors is an integer number (1590348060).

Almost surely, 2^15444045842 is an apocalyptic number.

15444045842 is a deficient number, since it is larger than the sum of its proper divisors (10001523118).

15444045842 is a wasteful number, since it uses less digits than its factorization.

15444045842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670577.

The product of its (nonzero) digits is 409600, while the sum is 41.

The spelling of 15444045842 in words is "fifteen billion, four hundred forty-four million, forty-five thousand, eight hundred forty-two".