776343676881 has 8 divisors (see below), whose sum is σ = 1035172060864. Its totient is φ = 517538872080.

The previous prime is 776343676873. The next prime is 776343676883. The reversal of 776343676881 is 188676343677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 776343676881 - 2³ = 776343676873 is a prime.

It is a super-2 number, since 2×776343676881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (776343676883) by changing a digit.

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, 5817826 + ... + 5949771.

It is an arithmetic number, because the mean of its divisors is an integer number (129396507608).

Almost surely, 2^776343676881 is an apocalyptic number.

It is an amenable number.

776343676881 is a deficient number, since it is larger than the sum of its proper divisors (258828383983).

776343676881 is a wasteful number, since it uses less digits than its factorization.

776343676881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11789591.

The product of its digits is 170698752, while the sum is 66.

The spelling of 776343676881 in words is "seven hundred seventy-six billion, three hundred forty-three million, six hundred seventy-six thousand, eight hundred eighty-one".