8013781722 has 8 divisors (see below), whose sum is σ = 16027563456. Its totient is φ = 2671260572.

The previous prime is 8013781703. The next prime is 8013781723. The reversal of 8013781722 is 2271873108.

It is a sphenic number, since it is the product of 3 distinct primes.

8013781722 is an admirable number.

It is a super-2 number, since 2×8013781722² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8013781723) by changing a digit.

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, 667815138 + ... + 667815149.

It is an arithmetic number, because the mean of its divisors is an integer number (2003445432).

Almost surely, 2^8013781722 is an apocalyptic number.

8013781722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8013781722 is a wasteful number, since it uses less digits than its factorization.

8013781722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335630292.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 8013781722 is about 89519.7281162091. The cubic root of 8013781722 is about 2001.1478179643.

The spelling of 8013781722 in words is "eight billion, thirteen million, seven hundred eighty-one thousand, seven hundred twenty-two".