2698187990 has 16 divisors (see below), whose sum is σ = 4936358160. Its totient is φ = 1061581920.

The previous prime is 2698187981. The next prime is 2698188001. The reversal of 2698187990 is 997818962.

It is a congruent number.

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, 2211020 + ... + 2212239.

It is an arithmetic number, because the mean of its divisors is an integer number (308522385).

Almost surely, 2^2698187990 is an apocalyptic number.

2698187990 is a deficient number, since it is larger than the sum of its proper divisors (2238170170).

2698187990 is a wasteful number, since it uses less digits than its factorization.

2698187990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423327.

The product of its (nonzero) digits is 3919104, while the sum is 59.

The square root of 2698187990 is about 51944.0852263277. The cubic root of 2698187990 is about 1392.1650764698.

The spelling of 2698187990 in words is "two billion, six hundred ninety-eight million, one hundred eighty-seven thousand, nine hundred ninety".