7822370664 has 64 divisors (see below), whose sum is σ = 21740688000. Its totient is φ = 2606031360.

The previous prime is 7822370663. The next prime is 7822370687. The reversal of 7822370664 is 4660732287.

It is a super-2 number, since 2×7822370664² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7822370663) 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, 431544 + ... + 449304.

It is an arithmetic number, because the mean of its divisors is an integer number (339698250).

Almost surely, 2^7822370664 is an apocalyptic number.

It is an amenable number.

7822370664 is an abundant number, since it is smaller than the sum of its proper divisors (13918317336).

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

7822370664 is a wasteful number, since it uses less digits than its factorization.

7822370664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19815 (or 19805 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 7822370664 is about 88444.1669303296. The cubic root of 7822370664 is about 1985.0866273974.

The spelling of 7822370664 in words is "seven billion, eight hundred twenty-two million, three hundred seventy thousand, six hundred sixty-four".