85138724498 has 16 divisors (see below), whose sum is σ = 130349982240. Its totient is φ = 41697671136.

The previous prime is 85138724417. The next prime is 85138724501. The reversal of 85138724498 is 89442783158.

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, 2216036 + ... + 2254127.

It is an arithmetic number, because the mean of its divisors is an integer number (8146873890).

Almost surely, 2^85138724498 is an apocalyptic number.

85138724498 is a deficient number, since it is larger than the sum of its proper divisors (45211257742).

85138724498 is a wasteful number, since it uses less digits than its factorization.

85138724498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470361.

The product of its digits is 15482880, while the sum is 59.

The spelling of 85138724498 in words is "eighty-five billion, one hundred thirty-eight million, seven hundred twenty-four thousand, four hundred ninety-eight".