85865304434770 has 48 divisors (see below), whose sum is σ = 179811787737240. Its totient is φ = 29436200070144.

The previous prime is 85865304434731. The next prime is 85865304434771. The reversal of 85865304434770 is 7743440356858.

It can be written as a sum of positive squares in 4 ways, for example, as 84572687788281 + 1292616646489 = 9196341^2 + 1136933^2 .

It is not an unprimeable number, because it can be changed into a prime (85865304434771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5584735 + ... + 14244994.

Almost surely, 2^{85865304434770} is an apocalyptic number.

85865304434770 is an abundant number, since it is smaller than the sum of its proper divisors (93946483302470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85865304434770 is a wasteful number, since it uses less digits than its factorization.

85865304434770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19838587 (or 19838580 counting only the distinct ones).

The product of its (nonzero) digits is 270950400, while the sum is 64.

The spelling of 85865304434770 in words is "eighty-five trillion, eight hundred sixty-five billion, three hundred four million, four hundred thirty-four thousand, seven hundred seventy".