2563860654436 has 81 divisors (see below), whose sum is σ = 4907625304491. Its totient is φ = 1171775360448.

The previous prime is 2563860654403. The next prime is 2563860654497. The reversal of 2563860654436 is 6344560683652.

The square root of 2563860654436 is 1601206.

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

It can be written as a sum of positive squares in 4 ways, for example, as 944492422500 + 1619368231936 = 971850^2 + 1272544^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1764528286 + ... + 1764529738.

Almost surely, 2^{2563860654436} is an apocalyptic number.

2563860654436 is the 1601206-th square number.

It is an amenable number.

2563860654436 is a deficient number, since it is larger than the sum of its proper divisors (2343764650055).

2563860654436 is an equidigital number, since it uses as much as digits as its factorization.

2563860654436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 58.

The spelling of 2563860654436 in words is "two trillion, five hundred sixty-three billion, eight hundred sixty million, six hundred fifty-four thousand, four hundred thirty-six".