85138330254902 has 32 divisors (see below), whose sum is σ = 134494838795520. Its totient is φ = 40308916278240.

The previous prime is 85138330254871. The next prime is 85138330254919. The reversal of 85138330254902 is 20945203383158.

It is a super-2 number, since 2×85138330254902² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2013038468 + ... + 2013080760.

It is an arithmetic number, because the mean of its divisors is an integer number (4202963712360).

Almost surely, 2^{85138330254902} is an apocalyptic number.

85138330254902 is a deficient number, since it is larger than the sum of its proper divisors (49356508540618).

85138330254902 is a wasteful number, since it uses less digits than its factorization.

85138330254902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67028.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 85138330254902 in words is "eighty-five trillion, one hundred thirty-eight billion, three hundred thirty million, two hundred fifty-four thousand, nine hundred two".