6622347820 has 24 divisors (see below), whose sum is σ = 15171197328. Its totient is φ = 2408126400.

The previous prime is 6622347811. The next prime is 6622347829. The reversal of 6622347820 is 287432266.

It is an interprime number because it is at equal distance from previous prime (6622347811) and next prime (6622347829).

It is not an unprimeable number, because it can be changed into a prime (6622347829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15050571 + ... + 15051010.

It is an arithmetic number, because the mean of its divisors is an integer number (632133222).

Almost surely, 2^6622347820 is an apocalyptic number.

It is an amenable number.

6622347820 is an abundant number, since it is smaller than the sum of its proper divisors (8548849508).

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

6622347820 is a wasteful number, since it uses less digits than its factorization.

6622347820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30101601 (or 30101599 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 6622347820 is about 81377.8091373809. The cubic root of 6622347820 is about 1877.8922186035.

The spelling of 6622347820 in words is "six billion, six hundred twenty-two million, three hundred forty-seven thousand, eight hundred twenty".