2538188534 has 24 divisors (see below), whose sum is σ = 4440103920. Its totient is φ = 1085038416.

The previous prime is 2538188533. The next prime is 2538188557. The reversal of 2538188534 is 4358818352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538188533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6287 + ... + 71525.

It is an arithmetic number, because the mean of its divisors is an integer number (185004330).

Almost surely, 2^2538188534 is an apocalyptic number.

2538188534 is a deficient number, since it is larger than the sum of its proper divisors (1901915386).

2538188534 is a wasteful number, since it uses less digits than its factorization.

2538188534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65652 (or 65645 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 2538188534 is about 50380.4380092115. The cubic root of 2538188534 is about 1364.0845582291.

The spelling of 2538188534 in words is "two billion, five hundred thirty-eight million, one hundred eighty-eight thousand, five hundred thirty-four".