85079449915 has 16 divisors (see below), whose sum is σ = 111174602400. Its totient is φ = 62257773312.

The previous prime is 85079449909. The next prime is 85079449933. The reversal of 85079449915 is 51994497058.

It is a cyclic number.

It is not a de Polignac number, because 85079449915 - 2¹⁵ = 85079417147 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 15438162 + ... + 15443671.

It is an arithmetic number, because the mean of its divisors is an integer number (6948412650).

Almost surely, 2^85079449915 is an apocalyptic number.

85079449915 is a deficient number, since it is larger than the sum of its proper divisors (26095152485).

85079449915 is a wasteful number, since it uses less digits than its factorization.

85079449915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30881886.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 85079449915 in words is "eighty-five billion, seventy-nine million, four hundred forty-nine thousand, nine hundred fifteen".