8102327805 has 64 divisors (see below), whose sum is σ = 16922384640. Its totient is φ = 3626208000.

The previous prime is 8102327773. The next prime is 8102327809. The reversal of 8102327805 is 5087232018.

It is not a de Polignac number, because 8102327805 - 2⁵ = 8102327773 is a prime.

It is a super-2 number, since 2×8102327805² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8102327805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102327809) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190546 + ... + 229155.

It is an arithmetic number, because the mean of its divisors is an integer number (264412260).

Almost surely, 2^8102327805 is an apocalyptic number.

It is an amenable number.

8102327805 is an abundant number, since it is smaller than the sum of its proper divisors (8820056835).

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

8102327805 is a wasteful number, since it uses less digits than its factorization.

8102327805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419739 (or 419733 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 8102327805 is about 90012.9313210052. The cubic root of 8102327805 is about 2008.4912156928.

The spelling of 8102327805 in words is "eight billion, one hundred two million, three hundred twenty-seven thousand, eight hundred five".