85780205622 has 24 divisors (see below), whose sum is σ = 187104481200. Its totient is φ = 28401498960.

The previous prime is 85780205587. The next prime is 85780205627. The reversal of 85780205622 is 22650208758.

85780205622 is a `hidden beast` number, since 8 + 5 + 7 + 80 + 2 + 0 + 562 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85780205627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15989154 + ... + 15994517.

It is an arithmetic number, because the mean of its divisors is an integer number (7796020050).

Almost surely, 2^85780205622 is an apocalyptic number.

85780205622 is an abundant number, since it is smaller than the sum of its proper divisors (101324275578).

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

85780205622 is a wasteful number, since it uses less digits than its factorization.

85780205622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31983828 (or 31983825 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 85780205622 in words is "eighty-five billion, seven hundred eighty million, two hundred five thousand, six hundred twenty-two".