68326823236 has 27 divisors (see below), whose sum is σ = 139101340287. Its totient is φ = 29281355880.

The previous prime is 68326823209. The next prime is 68326823251. The reversal of 68326823236 is 63232862386.

The square root of 68326823236 is 261394.

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

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 68326823236.

It is an unprimeable number.

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, 3650181 + ... + 3668851.

Almost surely, 2^68326823236 is an apocalyptic number.

68326823236 is the 261394-th square number.

It is an amenable number.

68326823236 is an abundant number, since it is smaller than the sum of its proper divisors (70774517051).

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

68326823236 is an frugal number, since it uses more digits than its factorization.

68326823236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37360 (or 18680 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 49.

Multiplying 68326823236 by its sum of digits (49), we get a square (3348014338564 = 1829758²).

68326823236 divided by its sum of digits (49) gives a square (1394424964 = 37342²).

The spelling of 68326823236 in words is "sixty-eight billion, three hundred twenty-six million, eight hundred twenty-three thousand, two hundred thirty-six".