85850352013 has 4 divisors (see below), whose sum is σ = 85851551548. Its totient is φ = 85849152480.

The previous prime is 85850351947. The next prime is 85850352017. The reversal of 85850352013 is 31025305858.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19943653284 + 65906698729 = 141222^2 + 256723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85850352013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85850352017) 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, 485106 + ... + 637987.

It is an arithmetic number, because the mean of its divisors is an integer number (21462887887).

Almost surely, 2^85850352013 is an apocalyptic number.

It is an amenable number.

85850352013 is a deficient number, since it is larger than the sum of its proper divisors (1199535).

85850352013 is a wasteful number, since it uses less digits than its factorization.

85850352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199534.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 85850352013 in words is "eighty-five billion, eight hundred fifty million, three hundred fifty-two thousand, thirteen".