2528798464 has 108 divisors (see below), whose sum is σ = 5500465320. Its totient is φ = 1157068800.

The previous prime is 2528798449. The next prime is 2528798477. The reversal of 2528798464 is 4648978252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4674034 + ... + 4674574.

Almost surely, 2^2528798464 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 2528798464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2750232660).

2528798464 is an abundant number, since it is smaller than the sum of its proper divisors (2971666856).

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

2528798464 is an equidigital number, since it uses as much as digits as its factorization.

2528798464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 593 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The square root of 2528798464 is about 50287.1600311650. The cubic root of 2528798464 is about 1362.4003285280.

The spelling of 2528798464 in words is "two billion, five hundred twenty-eight million, seven hundred ninety-eight thousand, four hundred sixty-four".