768358139 has 2 divisors, whose sum is σ = 768358140. Its totient is φ = 768358138.

The previous prime is 768358133. The next prime is 768358147. The reversal of 768358139 is 931853867.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 768358139 - 2²⁰ = 767309563 is a prime.

It is not a weakly prime, because it can be changed into another prime (768358133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384179069 + 384179070.

It is an arithmetic number, because the mean of its divisors is an integer number (384179070).

Almost surely, 2^768358139 is an apocalyptic number.

768358139 is a deficient number, since it is larger than the sum of its proper divisors (1).

768358139 is an equidigital number, since it uses as much as digits as its factorization.

768358139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 768358139 is about 27719.2737819734. The cubic root of 768358139 is about 915.9137215095.

The spelling of 768358139 in words is "seven hundred sixty-eight million, three hundred fifty-eight thousand, one hundred thirty-nine".