85075140029 has 4 divisors (see below), whose sum is σ = 92809243680. Its totient is φ = 77341036380.

The previous prime is 85075139977. The next prime is 85075140041. The reversal of 85075140029 is 92004157058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85075140029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85075140529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867051809 + ... + 3867051830.

It is an arithmetic number, because the mean of its divisors is an integer number (23202310920).

Almost surely, 2^85075140029 is an apocalyptic number.

It is an amenable number.

85075140029 is a deficient number, since it is larger than the sum of its proper divisors (7734103651).

85075140029 is a wasteful number, since it uses less digits than its factorization.

85075140029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734103650.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 85075140029 in words is "eighty-five billion, seventy-five million, one hundred forty thousand, twenty-nine".