768329855 has 4 divisors (see below), whose sum is σ = 921995832. Its totient is φ = 614663880.

The previous prime is 768329843. The next prime is 768329869. The reversal of 768329855 is 558923867.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 768329855 - 2¹⁴ = 768313471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 768329797 and 768329806.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 76832981 + ... + 76832990.

It is an arithmetic number, because the mean of its divisors is an integer number (230498958).

Almost surely, 2^768329855 is an apocalyptic number.

768329855 is a deficient number, since it is larger than the sum of its proper divisors (153665977).

768329855 is a wasteful number, since it uses less digits than its factorization.

768329855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153665976.

The product of its digits is 3628800, while the sum is 53.

The square root of 768329855 is about 27718.7635907520. The cubic root of 768329855 is about 915.9024828174.

The spelling of 768329855 in words is "seven hundred sixty-eight million, three hundred twenty-nine thousand, eight hundred fifty-five".