275397197089 has 27 divisors (see below), whose sum is σ = 325963129401. Its totient is φ = 231996068640.

The previous prime is 275397197083. The next prime is 275397197113. The reversal of 275397197089 is 980791793572.

The square root of 275397197089 is 524783.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1240237089 + 274156960000 = 35217^2 + 523600^2 .

It is not a de Polignac number, because 275397197089 - 2⁷ = 275397196961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275397197083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 224081727 + ... + 224082955.

Almost surely, 2^275397197089 is an apocalyptic number.

275397197089 is the 524783-rd square number.

275397197089 is the 262392-nd centered octagonal number.

It is an amenable number.

275397197089 is a deficient number, since it is larger than the sum of its proper divisors (50565932312).

275397197089 is an frugal number, since it uses more digits than its factorization.

275397197089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 60011280, while the sum is 67.

The spelling of 275397197089 in words is "two hundred seventy-five billion, three hundred ninety-seven million, one hundred ninety-seven thousand, eighty-nine".