85903404171 has 32 divisors (see below), whose sum is σ = 126255241728. Its totient is φ = 51631802880.

The previous prime is 85903404161. The next prime is 85903404193. The reversal of 85903404171 is 17140430958.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-85903404171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85903404151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151315 + ... + 441251.

It is an arithmetic number, because the mean of its divisors is an integer number (3945476304).

Almost surely, 2^85903404171 is an apocalyptic number.

85903404171 is a deficient number, since it is larger than the sum of its proper divisors (40351837557).

85903404171 is a wasteful number, since it uses less digits than its factorization.

85903404171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290131.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 85903404171 in words is "eighty-five billion, nine hundred three million, four hundred four thousand, one hundred seventy-one".