72138274183 has 2 divisors, whose sum is σ = 72138274184. Its totient is φ = 72138274182.

The previous prime is 72138274177. The next prime is 72138274277. The reversal of 72138274183 is 38147283127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72138274183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72138274133) 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 as a sum of consecutive naturals, namely, 36069137091 + 36069137092.

It is an arithmetic number, because the mean of its divisors is an integer number (36069137092).

Almost surely, 2^72138274183 is an apocalyptic number.

72138274183 is a deficient number, since it is larger than the sum of its proper divisors (1).

72138274183 is an equidigital number, since it uses as much as digits as its factorization.

72138274183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 46.

The spelling of 72138274183 in words is "seventy-two billion, one hundred thirty-eight million, two hundred seventy-four thousand, one hundred eighty-three".