72881055593 has 2 divisors, whose sum is σ = 72881055594. Its totient is φ = 72881055592.

The previous prime is 72881055539. The next prime is 72881055601. The reversal of 72881055593 is 39555018827.

Together with previous prime (72881055539) 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., 71924266969 + 956788624 = 268187^2 + 30932^2 .

It is a cyclic number.

It is not a de Polignac number, because 72881055593 - 2⁸ = 72881055337 is a prime.

It is a super-3 number, since 3×72881055593³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (72881055503) 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, 36440527796 + 36440527797.

It is an arithmetic number, because the mean of its divisors is an integer number (36440527797).

Almost surely, 2^72881055593 is an apocalyptic number.

It is an amenable number.

72881055593 is a deficient number, since it is larger than the sum of its proper divisors (1).

72881055593 is an equidigital number, since it uses as much as digits as its factorization.

72881055593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 72881055593 in words is "seventy-two billion, eight hundred eighty-one million, fifty-five thousand, five hundred ninety-three".