72248083213 has 2 divisors, whose sum is σ = 72248083214. Its totient is φ = 72248083212.

The previous prime is 72248083169. The next prime is 72248083231. The reversal of 72248083213 is 31238084227.

Together with next prime (72248083231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41299181284 + 30948901929 = 203222^2 + 175923^2 .

It is a cyclic number.

It is not a de Polignac number, because 72248083213 - 2¹³ = 72248075021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72248083513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36124041606 + 36124041607.

It is an arithmetic number, because the mean of its divisors is an integer number (36124041607).

Almost surely, 2^72248083213 is an apocalyptic number.

It is an amenable number.

72248083213 is a deficient number, since it is larger than the sum of its proper divisors (1).

72248083213 is an equidigital number, since it uses as much as digits as its factorization.

72248083213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 72248083213 in words is "seventy-two billion, two hundred forty-eight million, eighty-three thousand, two hundred thirteen".