867325277809 has 3 divisors (see below), whose sum is σ = 867326209113. Its totient is φ = 867324346506.

The previous prime is 867325277807. The next prime is 867325277837. The reversal of 867325277809 is 908772523768.

The square root of 867325277809 is 931303.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 867325277809 - 2¹ = 867325277807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867325277803) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 465652 + ... + 1396954.

It is an arithmetic number, because the mean of its divisors is an integer number (289108736371).

Almost surely, 2^867325277809 is an apocalyptic number.

867325277809 is the 931303-rd square number.

867325277809 is the 465652-nd centered octagonal number.

It is an amenable number.

867325277809 is a deficient number, since it is larger than the sum of its proper divisors (931304).

867325277809 is an frugal number, since it uses more digits than its factorization.

867325277809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862606 (or 931303 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 64.

Multiplying 867325277809 by its sum of digits (64), we get a square (55508817779776 = 7450424²).

The spelling of 867325277809 in words is "eight hundred sixty-seven billion, three hundred twenty-five million, two hundred seventy-seven thousand, eight hundred nine".