8266825617918 has 64 divisors (see below), whose sum is σ = 19548006912000. Its totient is φ = 2280406431744.

The previous prime is 8266825617913. The next prime is 8266825617971. The reversal of 8266825617918 is 8197165286628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8266825617913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31242718 + ... + 31506206.

It is an arithmetic number, because the mean of its divisors is an integer number (305437608000).

Almost surely, 2^{8266825617918} is an apocalyptic number.

8266825617918 is an abundant number, since it is smaller than the sum of its proper divisors (11281181294082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8266825617918 is a wasteful number, since it uses less digits than its factorization.

8266825617918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289289.

The product of its digits is 139345920, while the sum is 69.

The spelling of 8266825617918 in words is "eight trillion, two hundred sixty-six billion, eight hundred twenty-five million, six hundred seventeen thousand, nine hundred eighteen".