2538803646 has 12 divisors (see below), whose sum is σ = 5500741272. Its totient is φ = 846267876.

The previous prime is 2538803629. The next prime is 2538803677. The reversal of 2538803646 is 6463088352.

It is a happy number.

2538803646 is a `hidden beast` number, since 2 + 538 + 80 + 36 + 4 + 6 = 666.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 70522306 + ... + 70522341.

It is an arithmetic number, because the mean of its divisors is an integer number (458395106).

Almost surely, 2^2538803646 is an apocalyptic number.

2538803646 is an abundant number, since it is smaller than the sum of its proper divisors (2961937626).

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

2538803646 is a wasteful number, since it uses less digits than its factorization.

2538803646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141044655 (or 141044652 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 2538803646 is about 50386.5423104225. The cubic root of 2538803646 is about 1364.1947414035.

The spelling of 2538803646 in words is "two billion, five hundred thirty-eight million, eight hundred three thousand, six hundred forty-six".