84489090860 has 24 divisors (see below), whose sum is σ = 177745654800. Its totient is φ = 33734957504.

The previous prime is 84489090839. The next prime is 84489090893. The reversal of 84489090860 is 6809098448.

It is a junction number, because it is equal to n+sod(n) for n = 84489090796 and 84489090805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3781010 + ... + 3803289.

It is an arithmetic number, because the mean of its divisors is an integer number (7406068950).

Almost surely, 2^84489090860 is an apocalyptic number.

It is an amenable number.

84489090860 is an abundant number, since it is smaller than the sum of its proper divisors (93256563940).

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

84489090860 is a wasteful number, since it uses less digits than its factorization.

84489090860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584865 (or 7584863 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 84489090860 in words is "eighty-four billion, four hundred eighty-nine million, ninety thousand, eight hundred sixty".