768438756878 has 16 divisors (see below), whose sum is σ = 1241768068800. Its totient is φ = 354537206496.

The previous prime is 768438756847. The next prime is 768438756913. The reversal of 768438756878 is 878657834867.

It is a super-3 number, since 3×768438756878³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 768438756799 and 768438756808.

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 7 ways as a sum of consecutive naturals, for example, 5210678 + ... + 5356121.

It is an arithmetic number, because the mean of its divisors is an integer number (77610504300).

Almost surely, 2^768438756878 is an apocalyptic number.

768438756878 is a deficient number, since it is larger than the sum of its proper divisors (473329311922).

768438756878 is a wasteful number, since it uses less digits than its factorization.

768438756878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10569611.

The product of its digits is 3034644480, while the sum is 77.

The spelling of 768438756878 in words is "seven hundred sixty-eight billion, four hundred thirty-eight million, seven hundred fifty-six thousand, eight hundred seventy-eight".