2625898128 has 80 divisors (see below), whose sum is σ = 7825213440. Its totient is φ = 743234688.

The previous prime is 2625898123. The next prime is 2625898129. The reversal of 2625898128 is 8218985262.

It is not an unprimeable number, because it can be changed into a prime (2625898123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568 + ... + 72471.

It is an arithmetic number, because the mean of its divisors is an integer number (97815168).

Almost surely, 2^2625898128 is an apocalyptic number.

2625898128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2625898128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3912606720).

2625898128 is an abundant number, since it is smaller than the sum of its proper divisors (5199315312).

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

2625898128 is a wasteful number, since it uses less digits than its factorization.

2625898128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73164 (or 73158 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The square root of 2625898128 is about 51243.5179120247. The cubic root of 2625898128 is about 1379.6193951436.

The spelling of 2625898128 in words is "two billion, six hundred twenty-five million, eight hundred ninety-eight thousand, one hundred twenty-eight".