72555853610839 has 2 divisors, whose sum is σ = 72555853610840. Its totient is φ = 72555853610838.

The previous prime is 72555853610753. The next prime is 72555853610881. The reversal of 72555853610839 is 93801635855527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72555853610839 - 2³⁹ = 72006097796951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72555853610899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277926805419 + 36277926805420.

It is an arithmetic number, because the mean of its divisors is an integer number (36277926805420).

Almost surely, 2^{72555853610839} is an apocalyptic number.

72555853610839 is a deficient number, since it is larger than the sum of its proper divisors (1).

72555853610839 is an equidigital number, since it uses as much as digits as its factorization.

72555853610839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160000, while the sum is 67.

The spelling of 72555853610839 in words is "seventy-two trillion, five hundred fifty-five billion, eight hundred fifty-three million, six hundred ten thousand, eight hundred thirty-nine".