2115869898 has 16 divisors (see below), whose sum is σ = 4247358336. Its totient is φ = 702686880.

The previous prime is 2115869897. The next prime is 2115869933. The reversal of 2115869898 is 8989685112.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2115869897) 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, 649011 + ... + 652262.

It is an arithmetic number, because the mean of its divisors is an integer number (265459896).

Almost surely, 2^2115869898 is an apocalyptic number.

2115869898 is an abundant number, since it is smaller than the sum of its proper divisors (2131488438).

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

2115869898 is a wasteful number, since it uses less digits than its factorization.

2115869898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301549.

The product of its digits is 2488320, while the sum is 57.

The square root of 2115869898 is about 45998.5858260882. The cubic root of 2115869898 is about 1283.7968921559.

The spelling of 2115869898 in words is "two billion, one hundred fifteen million, eight hundred sixty-nine thousand, eight hundred ninety-eight".