8581406722 has 16 divisors (see below), whose sum is σ = 14712285312. Its totient is φ = 3677420160.

The previous prime is 8581406719. The next prime is 8581406731. The reversal of 8581406722 is 2276041858.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 205347 + ... + 243577.

It is an arithmetic number, because the mean of its divisors is an integer number (919517832).

Almost surely, 2^8581406722 is an apocalyptic number.

8581406722 is a deficient number, since it is larger than the sum of its proper divisors (6130878590).

8581406722 is a wasteful number, since it uses less digits than its factorization.

8581406722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54273.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 8581406722 is about 92635.8824754209. The cubic root of 8581406722 is about 2047.3220413810.

The spelling of 8581406722 in words is "eight billion, five hundred eighty-one million, four hundred six thousand, seven hundred twenty-two".