85121412158 has 8 divisors (see below), whose sum is σ = 127839947760. Its totient is φ = 42508096240.

The previous prime is 85121412143. The next prime is 85121412163.

85121412158 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85121412158² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 26302898 + ... + 26306133.

It is an arithmetic number, because the mean of its divisors is an integer number (15979993470).

Almost surely, 2^85121412158 is an apocalyptic number.

85121412158 is a deficient number, since it is larger than the sum of its proper divisors (42718535602).

85121412158 is a wasteful number, since it uses less digits than its factorization.

85121412158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52609842.

The product of its digits is 25600, while the sum is 38.

The spelling of 85121412158 in words is "eighty-five billion, one hundred twenty-one million, four hundred twelve thousand, one hundred fifty-eight".