538297490173 has 2 divisors, whose sum is σ = 538297490174. Its totient is φ = 538297490172.

The previous prime is 538297490153. The next prime is 538297490179. The reversal of 538297490173 is 371094792835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317507456484 + 220790033689 = 563478^2 + 469883^2 .

It is a cyclic number.

It is not a de Polignac number, because 538297490173 - 2⁵ = 538297490141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538297490179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269148745086 + 269148745087.

It is an arithmetic number, because the mean of its divisors is an integer number (269148745087).

Almost surely, 2^538297490173 is an apocalyptic number.

It is an amenable number.

538297490173 is a deficient number, since it is larger than the sum of its proper divisors (1).

538297490173 is an equidigital number, since it uses as much as digits as its factorization.

538297490173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 538297490173 in words is "five hundred thirty-eight billion, two hundred ninety-seven million, four hundred ninety thousand, one hundred seventy-three".