15109890285 has 16 divisors (see below), whose sum is σ = 27629513856. Its totient is φ = 6907378368.

The previous prime is 15109890283. The next prime is 15109890307. The reversal of 15109890285 is 58209890151.

15109890285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15109890285 - 2¹ = 15109890283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15109890283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71951754 + ... + 71951963.

It is an arithmetic number, because the mean of its divisors is an integer number (1726844616).

Almost surely, 2^15109890285 is an apocalyptic number.

15109890285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15109890285 is a deficient number, since it is larger than the sum of its proper divisors (12519623571).

15109890285 is a wasteful number, since it uses less digits than its factorization.

15109890285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143903732.

The product of its (nonzero) digits is 259200, while the sum is 48.

The spelling of 15109890285 in words is "fifteen billion, one hundred nine million, eight hundred ninety thousand, two hundred eighty-five".