7138337178 has 64 divisors (see below), whose sum is σ = 17127936000. Its totient is φ = 1939124352.

The previous prime is 7138337177. The next prime is 7138337189. The reversal of 7138337178 is 8717338317.

It is not an unprimeable number, because it can be changed into a prime (7138337177) 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 31 ways as a sum of consecutive naturals, for example, 139198 + ... + 183446.

It is an arithmetic number, because the mean of its divisors is an integer number (267624000).

Almost surely, 2^7138337178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7138337178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8563968000).

7138337178 is an abundant number, since it is smaller than the sum of its proper divisors (9989598822).

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

7138337178 is a wasteful number, since it uses less digits than its factorization.

7138337178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44451.

The product of its digits is 592704, while the sum is 48.

The square root of 7138337178 is about 84488.6807684911. The cubic root of 7138337178 is about 1925.4504756056.

The spelling of 7138337178 in words is "seven billion, one hundred thirty-eight million, three hundred thirty-seven thousand, one hundred seventy-eight".