85580900490 has 32 divisors (see below), whose sum is σ = 205488578880. Its totient is φ = 22811082624.

The previous prime is 85580900473. The next prime is 85580900501. The reversal of 85580900490 is 9400908558.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589219 + ... + 719958.

It is an arithmetic number, because the mean of its divisors is an integer number (6421518090).

Almost surely, 2^85580900490 is an apocalyptic number.

85580900490 is an abundant number, since it is smaller than the sum of its proper divisors (119907678390).

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

85580900490 is a wasteful number, since it uses less digits than its factorization.

85580900490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311366.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 85580900490 in words is "eighty-five billion, five hundred eighty million, nine hundred thousand, four hundred ninety".