8461726388 has 12 divisors (see below), whose sum is σ = 14809469220. Its totient is φ = 4230449472.

The previous prime is 8461726367. The next prime is 8461726391. The reversal of 8461726388 is 8836271648.

It can be written as a sum of positive squares in 2 ways, for example, as 1479787024 + 6981939364 = 38468^2 + 83558^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54881 + ... + 141192.

It is an arithmetic number, because the mean of its divisors is an integer number (1234122435).

Almost surely, 2^8461726388 is an apocalyptic number.

It is an amenable number.

8461726388 is a deficient number, since it is larger than the sum of its proper divisors (6347742832).

8461726388 is a wasteful number, since it uses less digits than its factorization.

8461726388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206866 (or 206864 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 8461726388 is about 91987.6425831209. The cubic root of 8461726388 is about 2037.7598108375.

The spelling of 8461726388 in words is "eight billion, four hundred sixty-one million, seven hundred twenty-six thousand, three hundred eighty-eight".