7816229817 has 16 divisors (see below), whose sum is σ = 11863369728. Its totient is φ = 4531147280.

The previous prime is 7816229807. The next prime is 7816229821. The reversal of 7816229817 is 7189226187.

It is not a de Polignac number, because 7816229817 - 2⁴ = 7816229801 is a prime.

It is a super-2 number, since 2×7816229817² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7816229817.

It is not an unprimeable number, because it can be changed into a prime (7816229807) 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, 5148273 + ... + 5149790.

It is an arithmetic number, because the mean of its divisors is an integer number (741460608).

Almost surely, 2^7816229817 is an apocalyptic number.

It is an amenable number.

7816229817 is a deficient number, since it is larger than the sum of its proper divisors (4047139911).

7816229817 is a wasteful number, since it uses less digits than its factorization.

7816229817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10298100.

The product of its digits is 677376, while the sum is 51.

The square root of 7816229817 is about 88409.4441618089. Note that the first 3 decimals coincide. The cubic root of 7816229817 is about 1984.5670362116.

The spelling of 7816229817 in words is "seven billion, eight hundred sixteen million, two hundred twenty-nine thousand, eight hundred seventeen".