768326724778 has 4 divisors (see below), whose sum is σ = 1152490087170. Its totient is φ = 384163362388.

The previous prime is 768326724773. The next prime is 768326724839. The reversal of 768326724778 is 877427623867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877427623867 = 373 ⋅2352352879.

It can be written as a sum of positive squares in only one way, i.e., 421932090969 + 346394633809 = 649563^2 + 588553^2 .

It is not an unprimeable number, because it can be changed into a prime (768326724773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192081681193 + ... + 192081681196.

Almost surely, 2^768326724778 is an apocalyptic number.

768326724778 is a deficient number, since it is larger than the sum of its proper divisors (384163362392).

768326724778 is a wasteful number, since it uses less digits than its factorization.

768326724778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384163362391.

The product of its digits is 265531392, while the sum is 67.

The spelling of 768326724778 in words is "seven hundred sixty-eight billion, three hundred twenty-six million, seven hundred twenty-four thousand, seven hundred seventy-eight".