2485699890 has 64 divisors (see below), whose sum is σ = 6341984640. Its totient is φ = 621734400.

The previous prime is 2485699883. The next prime is 2485699891. The reversal of 2485699890 is 989965842.

It is not an unprimeable number, because it can be changed into a prime (2485699891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35982 + ... + 79158.

It is an arithmetic number, because the mean of its divisors is an integer number (99093510).

Almost surely, 2^2485699890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2485699890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3170992320).

2485699890 is an abundant number, since it is smaller than the sum of its proper divisors (3856284750).

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

2485699890 is a wasteful number, since it uses less digits than its factorization.

2485699890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43307.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The square root of 2485699890 is about 49856.7938198998. The cubic root of 2485699890 is about 1354.6160938151.

The spelling of 2485699890 in words is "two billion, four hundred eighty-five million, six hundred ninety-nine thousand, eight hundred ninety".