8485390990 has 16 divisors (see below), whose sum is σ = 15766404480. Its totient is φ = 3284667360.

The previous prime is 8485390957. The next prime is 8485390993. The reversal of 8485390990 is 990935848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8485390993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13685805 + ... + 13686424.

It is an arithmetic number, because the mean of its divisors is an integer number (985400280).

Almost surely, 2^8485390990 is an apocalyptic number.

8485390990 is a deficient number, since it is larger than the sum of its proper divisors (7281013490).

8485390990 is a wasteful number, since it uses less digits than its factorization.

8485390990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27372267.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 8485390990 is about 92116.1820203161. The cubic root of 8485390990 is about 2039.6576855780.

The spelling of 8485390990 in words is "eight billion, four hundred eighty-five million, three hundred ninety thousand, nine hundred ninety".