7188465664 has 48 divisors (see below), whose sum is σ = 14470501500. Its totient is φ = 3569958912.

The previous prime is 7188465637. The next prime is 7188465677. The reversal of 7188465664 is 4665648817.

It can be written as a sum of positive squares in 2 ways, for example, as 4978713600 + 2209752064 = 70560^2 + 47008^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 293374 + ... + 316930.

Almost surely, 2^7188465664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7188465664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7235250750).

7188465664 is an abundant number, since it is smaller than the sum of its proper divisors (7282035836).

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

7188465664 is a wasteful number, since it uses less digits than its factorization.

7188465664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23728 (or 23708 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The square root of 7188465664 is about 84784.8197733533. The cubic root of 7188465664 is about 1929.9470811553.

The spelling of 7188465664 in words is "seven billion, one hundred eighty-eight million, four hundred sixty-five thousand, six hundred sixty-four".