2135399984 has 20 divisors (see below), whose sum is σ = 4145578416. Its totient is φ = 1065573312.

The previous prime is 2135399887. The next prime is 2135399993. The reversal of 2135399984 is 4899935312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124619 + ... + 140714.

Almost surely, 2^2135399984 is an apocalyptic number.

It is an amenable number.

2135399984 is a deficient number, since it is larger than the sum of its proper divisors (2010178432).

2135399984 is a wasteful number, since it uses less digits than its factorization.

2135399984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265844 (or 265838 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 53.

The square root of 2135399984 is about 46210.3882693059. The cubic root of 2135399984 is about 1287.7347389131.

The spelling of 2135399984 in words is "two billion, one hundred thirty-five million, three hundred ninety-nine thousand, nine hundred eighty-four".