7318664441 has 16 divisors (see below), whose sum is σ = 8489976768. Its totient is φ = 6235046400.

The previous prime is 7318664401. The next prime is 7318664443. The reversal of 7318664441 is 1444668137.

It is a de Polignac number, because none of the positive numbers 2^k-7318664441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7318664392 and 7318664401.

It is not an unprimeable number, because it can be changed into a prime (7318664443) 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, 40415 + ... + 127556.

It is an arithmetic number, because the mean of its divisors is an integer number (530623548).

Almost surely, 2^7318664441 is an apocalyptic number.

It is an amenable number.

7318664441 is a deficient number, since it is larger than the sum of its proper divisors (1171312327).

7318664441 is a wasteful number, since it uses less digits than its factorization.

7318664441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168232.

The product of its digits is 387072, while the sum is 44.

The square root of 7318664441 is about 85549.1931054876. The cubic root of 7318664441 is about 1941.5292827927.

The spelling of 7318664441 in words is "seven billion, three hundred eighteen million, six hundred sixty-four thousand, four hundred forty-one".