15091170842 has 16 divisors (see below), whose sum is σ = 25042457664. Its totient is φ = 6763008000.

The previous prime is 15091170821. The next prime is 15091170889. The reversal of 15091170842 is 24807119051.

It is a junction number, because it is equal to n+sod(n) for n = 15091170796 and 15091170805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4829159 + ... + 4832282.

It is an arithmetic number, because the mean of its divisors is an integer number (1565153604).

Almost surely, 2^15091170842 is an apocalyptic number.

15091170842 is a deficient number, since it is larger than the sum of its proper divisors (9951286822).

15091170842 is a wasteful number, since it uses less digits than its factorization.

15091170842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9661525.

The product of its (nonzero) digits is 20160, while the sum is 38.

Adding to 15091170842 its reverse (24807119051), we get a palindrome (39898289893).

The spelling of 15091170842 in words is "fifteen billion, ninety-one million, one hundred seventy thousand, eight hundred forty-two".