85030561638685 has 8 divisors (see below), whose sum is σ = 109885648887000. Its totient is φ = 62791799363904.

The previous prime is 85030561638577. The next prime is 85030561638703. The reversal of 85030561638685 is 58683616503058.

It can be written as a sum of positive squares in 4 ways, for example, as 3588076985284 + 81442484653401 = 1894222^2 + 9024549^2 .

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

It is not a de Polignac number, because 85030561638685 - 2⁷ = 85030561638557 is a prime.

It is a super-2 number, since 2×85030561638685² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654081243310 + ... + 654081243439.

It is an arithmetic number, because the mean of its divisors is an integer number (13735706110875).

Almost surely, 2^{85030561638685} is an apocalyptic number.

It is an amenable number.

85030561638685 is a deficient number, since it is larger than the sum of its proper divisors (24855087248315).

85030561638685 is a wasteful number, since it uses less digits than its factorization.

85030561638685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308162486767.

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 85030561638685 in words is "eighty-five trillion, thirty billion, five hundred sixty-one million, six hundred thirty-eight thousand, six hundred eighty-five".