8222625644 has 24 divisors (see below), whose sum is σ = 14482117440. Its totient is φ = 4084909184.

The previous prime is 8222625623. The next prime is 8222625647. The reversal of 8222625644 is 4465262228.

It is a super-2 number, since 2×8222625644² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8222625647) 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 7 ways as a sum of consecutive naturals, for example, 1487117 + ... + 1492635.

It is an arithmetic number, because the mean of its divisors is an integer number (603421560).

Almost surely, 2^8222625644 is an apocalyptic number.

It is an amenable number.

8222625644 is a deficient number, since it is larger than the sum of its proper divisors (6259491796).

8222625644 is a wasteful number, since it uses less digits than its factorization.

8222625644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7849 (or 7847 counting only the distinct ones).

The product of its digits is 368640, while the sum is 41.

The square root of 8222625644 is about 90678.6945428748. The cubic root of 8222625644 is about 2018.3826582784.

The spelling of 8222625644 in words is "eight billion, two hundred twenty-two million, six hundred twenty-five thousand, six hundred forty-four".