2538279867204 has 135 divisors (see below), whose sum is σ = 6750780489453. Its totient is φ = 831649356000.

The previous prime is 2538279867181. The next prime is 2538279867209. The reversal of 2538279867204 is 4027689728352.

The square root of 2538279867204 is 1593198.

It is a perfect power (a square), and thus also a powerful number.

2538279867204 is a `hidden beast` number, since 2 + 538 + 2 + 7 + 98 + 6 + 7 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 82540140804 + 2455739726400 = 287298^2 + 1567080^2 .

It is not an unprimeable number, because it can be changed into a prime (2538279867209) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1749330679 + ... + 1749332129.

Almost surely, 2^{2538279867204} is an apocalyptic number.

2538279867204 is the 1593198-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2538279867204

2538279867204 is an abundant number, since it is smaller than the sum of its proper divisors (4212500622249).

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

2538279867204 is an frugal number, since it uses more digits than its factorization.

2538279867204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 2538279867204 in words is "two trillion, five hundred thirty-eight billion, two hundred seventy-nine million, eight hundred sixty-seven thousand, two hundred four".