8065181922 has 32 divisors (see below), whose sum is σ = 19519097472. Its totient is φ = 2168788224.

The previous prime is 8065181903. The next prime is 8065181923. The reversal of 8065181922 is 2291815608.

It is a happy number.

It is a super-2 number, since 2×8065181922² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (8065181923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5647173 + ... + 5648600.

It is an arithmetic number, because the mean of its divisors is an integer number (609971796).

Almost surely, 2^8065181922 is an apocalyptic number.

8065181922 is an abundant number, since it is smaller than the sum of its proper divisors (11453915550).

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

8065181922 is a wasteful number, since it uses less digits than its factorization.

8065181922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295802.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 8065181922 is about 89806.3579152389. The cubic root of 8065181922 is about 2005.4171408783.

The spelling of 8065181922 in words is "eight billion, sixty-five million, one hundred eighty-one thousand, nine hundred twenty-two".