85808202540 has 48 divisors (see below), whose sum is σ = 240374923488. Its totient is φ = 22871524864.

The previous prime is 85808202521. The next prime is 85808202551. The reversal of 85808202540 is 4520280858.

It is a junction number, because it is equal to n+sod(n) for n = 85808202492 and 85808202501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202947 + ... + 461306.

It is an arithmetic number, because the mean of its divisors is an integer number (5007810906).

Almost surely, 2^85808202540 is an apocalyptic number.

It is an amenable number.

85808202540 is an abundant number, since it is smaller than the sum of its proper divisors (154566720948).

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

85808202540 is a wasteful number, since it uses less digits than its factorization.

85808202540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666418 (or 666416 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

The spelling of 85808202540 in words is "eighty-five billion, eight hundred eight million, two hundred two thousand, five hundred forty".