2599998498 has 12 divisors (see below), whose sum is σ = 5633330118. Its totient is φ = 866666160.

The previous prime is 2599998469. The next prime is 2599998529. The reversal of 2599998498 is 8948999952.

It can be written as a sum of positive squares in only one way, i.e., 2595189249 + 4809249 = 50943^2 + 2193^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72222163 + ... + 72222198.

Almost surely, 2^2599998498 is an apocalyptic number.

2599998498 is an abundant number, since it is smaller than the sum of its proper divisors (3033331620).

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

2599998498 is a wasteful number, since it uses less digits than its factorization.

2599998498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144444369 (or 144444366 counting only the distinct ones).

The product of its digits is 151165440, while the sum is 72.

The square root of 2599998498 is about 50990.1804076040. The cubic root of 2599998498 is about 1375.0686022852.

The spelling of 2599998498 in words is "two billion, five hundred ninety-nine million, nine hundred ninety-eight thousand, four hundred ninety-eight".