2538806819528 has 48 divisors (see below), whose sum is σ = 5539349379420. Its totient is φ = 1087686569088.

The previous prime is 2538806819503. The next prime is 2538806819551. The reversal of 2538806819528 is 8259186088352.

It can be written as a sum of positive squares in 2 ways, for example, as 2518562652004 + 20244167524 = 1586998^2 + 142282^2 .

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, 33326 + ... + 2253602.

Almost surely, 2^{2538806819528} is an apocalyptic number.

2538806819528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2538806819528 is an abundant number, since it is smaller than the sum of its proper divisors (3000542559892).

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

2538806819528 is a wasteful number, since it uses less digits than its factorization.

2538806819528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223214 (or 2223203 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 65.

The spelling of 2538806819528 in words is "two trillion, five hundred thirty-eight billion, eight hundred six million, eight hundred nineteen thousand, five hundred twenty-eight".