7318068438 has 32 divisors (see below), whose sum is σ = 15501822336. Its totient is φ = 2295163008.

The previous prime is 7318068437. The next prime is 7318068467. The reversal of 7318068438 is 8348608137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7318068431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399345 + ... + 417267.

It is an arithmetic number, because the mean of its divisors is an integer number (484431948).

Almost surely, 2^7318068438 is an apocalyptic number.

7318068438 is an abundant number, since it is smaller than the sum of its proper divisors (8183753898).

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

7318068438 is a wasteful number, since it uses less digits than its factorization.

7318068438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21948.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 7318068438 is about 85545.7096411036. The cubic root of 7318068438 is about 1941.4765778809.

The spelling of 7318068438 in words is "seven billion, three hundred eighteen million, sixty-eight thousand, four hundred thirty-eight".