72254841613 has 2 divisors, whose sum is σ = 72254841614. Its totient is φ = 72254841612.

The previous prime is 72254841587. The next prime is 72254841641. The reversal of 72254841613 is 31614845227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52321072644 + 19933768969 = 228738^2 + 141187^2 .

It is a cyclic number.

It is not a de Polignac number, because 72254841613 - 2²⁵ = 72221287181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72254841613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72254841643) by changing a digit.

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 as a sum of consecutive naturals, namely, 36127420806 + 36127420807.

It is an arithmetic number, because the mean of its divisors is an integer number (36127420807).

Almost surely, 2^72254841613 is an apocalyptic number.

It is an amenable number.

72254841613 is a deficient number, since it is larger than the sum of its proper divisors (1).

72254841613 is an equidigital number, since it uses as much as digits as its factorization.

72254841613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The spelling of 72254841613 in words is "seventy-two billion, two hundred fifty-four million, eight hundred forty-one thousand, six hundred thirteen".