85000357802778 has 64 divisors (see below), whose sum is σ = 185934761805312. Its totient is φ = 25691133948480.

The previous prime is 85000357802747. The next prime is 85000357802779. The reversal of 85000357802778 is 87720875300058.

It is not an unprimeable number, because it can be changed into a prime (85000357802779) 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, 89199000 + ... + 90146892.

It is an arithmetic number, because the mean of its divisors is an integer number (2905230653208).

Almost surely, 2^{85000357802778} is an apocalyptic number.

85000357802778 is an abundant number, since it is smaller than the sum of its proper divisors (100934404002534).

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

85000357802778 is a wasteful number, since it uses less digits than its factorization.

85000357802778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951419.

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 85000357802778 in words is "eighty-five trillion, three hundred fifty-seven million, eight hundred two thousand, seven hundred seventy-eight".