82875470161 has 9 divisors (see below), whose sum is σ = 91098005929. Its totient is φ = 75338457700.

The previous prime is 82875470077. The next prime is 82875470189. The reversal of 82875470161 is 16107457828.

The square root of 82875470161 is 287881.

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

It is not a de Polignac number, because 82875470161 - 2¹¹ = 82875468113 is a prime.

It is a super-3 number, since 3×82875470161³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82875470261) 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 in 8 ways as a sum of consecutive naturals, for example, 3153606 + ... + 3179776.

Almost surely, 2^82875470161 is an apocalyptic number.

82875470161 is the 287881-st square number.

82875470161 is the 143941-st centered octagonal number.

It is an amenable number.

82875470161 is a deficient number, since it is larger than the sum of its proper divisors (8222535768).

82875470161 is an frugal number, since it uses more digits than its factorization.

82875470161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52364 (or 26182 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 49.

Multiplying 82875470161 by its sum of digits (49), we get a square (4060898037889 = 2015167²).

The spelling of 82875470161 in words is "eighty-two billion, eight hundred seventy-five million, four hundred seventy thousand, one hundred sixty-one".