2538971636 has 12 divisors (see below), whose sum is σ = 4546530912. Its totient is φ = 1239962808.

The previous prime is 2538971627. The next prime is 2538971647. The reversal of 2538971636 is 6361798352.

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 3 ways as a sum of consecutive naturals, for example, 7380560 + ... + 7380903.

It is an arithmetic number, because the mean of its divisors is an integer number (378877576).

Almost surely, 2^2538971636 is an apocalyptic number.

It is an amenable number.

2538971636 is a deficient number, since it is larger than the sum of its proper divisors (2007559276).

2538971636 is a wasteful number, since it uses less digits than its factorization.

2538971636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14761510 (or 14761508 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 2538971636 is about 50388.2092954294. The cubic root of 2538971636 is about 1364.2248298562.

The spelling of 2538971636 in words is "two billion, five hundred thirty-eight million, nine hundred seventy-one thousand, six hundred thirty-six".