768883138 has 8 divisors (see below), whose sum is σ = 1153443132. Its totient is φ = 384402096.

The previous prime is 768883133. The next prime is 768883163. The reversal of 768883138 is 831388867.

768883138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 746764929 + 22118209 = 27327^2 + 4703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (768883133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23956 + ... + 45952.

Almost surely, 2^768883138 is an apocalyptic number.

768883138 is a deficient number, since it is larger than the sum of its proper divisors (384559994).

768883138 is a wasteful number, since it uses less digits than its factorization.

768883138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39476.

The product of its digits is 1548288, while the sum is 52.

The square root of 768883138 is about 27728.7420919161. The cubic root of 768883138 is about 916.1222806378.

The spelling of 768883138 in words is "seven hundred sixty-eight million, eight hundred eighty-three thousand, one hundred thirty-eight".