967777777768 has 16 divisors (see below), whose sum is σ = 1815531915780. Its totient is φ = 483635933568.

The previous prime is 967777777753. The next prime is 967777777787. The reversal of 967777777768 is 867777777769.

It can be written as a sum of positive squares in 2 ways, for example, as 839096304484 + 128681473284 = 916022^2 + 358722^2 .

It is a super-3 number, since 3×967777777768³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

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, 31603155 + ... + 31633762.

Almost surely, 2^967777777768 is an apocalyptic number.

It is an amenable number.

967777777768 is a deficient number, since it is larger than the sum of its proper divisors (847754138012).

967777777768 is a wasteful number, since it uses less digits than its factorization.

967777777768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63238836 (or 63238832 counting only the distinct ones).

The product of its digits is 14942364192, while the sum is 85.

Subtracting from 967777777768 its reverse (867777777769), we obtain a palindrome (99999999999).

The spelling of 967777777768 in words is "nine hundred sixty-seven billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred sixty-eight".