172757285893 has 2 divisors, whose sum is σ = 172757285894. Its totient is φ = 172757285892.

The previous prime is 172757285867. The next prime is 172757285929. The reversal of 172757285893 is 398582757271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156849265764 + 15908020129 = 396042^2 + 126127^2 .

It is a cyclic number.

It is not a de Polignac number, because 172757285893 - 2¹⁷ = 172757154821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172757285593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86378642946 + 86378642947.

It is an arithmetic number, because the mean of its divisors is an integer number (86378642947).

Almost surely, 2^172757285893 is an apocalyptic number.

It is an amenable number.

172757285893 is a deficient number, since it is larger than the sum of its proper divisors (1).

172757285893 is an equidigital number, since it uses as much as digits as its factorization.

172757285893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59270400, while the sum is 64.

The spelling of 172757285893 in words is "one hundred seventy-two billion, seven hundred fifty-seven million, two hundred eighty-five thousand, eight hundred ninety-three".