15115286442 has 16 divisors (see below), whose sum is σ = 30360320640. Its totient is φ = 5016804192.

The previous prime is 15115286437. The next prime is 15115286479. The reversal of 15115286442 is 24468251151.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15115286442.

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, 5404642 + ... + 5407437.

It is an arithmetic number, because the mean of its divisors is an integer number (1897520040).

Almost surely, 2^15115286442 is an apocalyptic number.

15115286442 is an abundant number, since it is smaller than the sum of its proper divisors (15245034198).

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

15115286442 is a wasteful number, since it uses less digits than its factorization.

15115286442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10812317.

The product of its digits is 76800, while the sum is 39.

The spelling of 15115286442 in words is "fifteen billion, one hundred fifteen million, two hundred eighty-six thousand, four hundred forty-two".