768134555 has 4 divisors (see below), whose sum is σ = 921761472. Its totient is φ = 614507640.

The previous prime is 768134537. The next prime is 768134557. The reversal of 768134555 is 555431867.

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

It is not a de Polignac number, because 768134555 - 2⁶ = 768134491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768134557) 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 3 ways as a sum of consecutive naturals, for example, 76813451 + ... + 76813460.

It is an arithmetic number, because the mean of its divisors is an integer number (230440368).

Almost surely, 2^768134555 is an apocalyptic number.

768134555 is a deficient number, since it is larger than the sum of its proper divisors (153626917).

768134555 is a wasteful number, since it uses less digits than its factorization.

768134555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153626916.

The product of its digits is 504000, while the sum is 44.

The square root of 768134555 is about 27715.2404824494. The cubic root of 768134555 is about 915.8248725255.

The spelling of 768134555 in words is "seven hundred sixty-eight million, one hundred thirty-four thousand, five hundred fifty-five".