2599998912 has 392 divisors, whose sum is σ = 9328099200. Its totient is φ = 702079488.

The previous prime is 2599998911. The next prime is 2599998953. The reversal of 2599998912 is 2198999952.

2599998912 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 2599998912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2599998911) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6205039 + ... + 6205457.

Almost surely, 2^2599998912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2599998912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4664049600).

2599998912 is an abundant number, since it is smaller than the sum of its proper divisors (6728100288).

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

2599998912 is an equidigital number, since it uses as much as digits as its factorization.

2599998912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 450 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 63.

The square root of 2599998912 is about 50990.1844672090. The cubic root of 2599998912 is about 1375.0686752696.

The spelling of 2599998912 in words is "two billion, five hundred ninety-nine million, nine hundred ninety-eight thousand, nine hundred twelve".