778095961 has 8 divisors (see below), whose sum is σ = 819398880. Its totient is φ = 736828128.

The previous prime is 778095917. The next prime is 778095973. The reversal of 778095961 is 169590877.

It is a happy number.

778095961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 778095961 - 2⁷ = 778095833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 778095899 and 778095908.

It is not an unprimeable number, because it can be changed into a prime (778092961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45390 + ... + 60136.

It is an arithmetic number, because the mean of its divisors is an integer number (102424860).

Almost surely, 2^778095961 is an apocalyptic number.

It is an amenable number.

778095961 is a deficient number, since it is larger than the sum of its proper divisors (41302919).

778095961 is a wasteful number, since it uses less digits than its factorization.

778095961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17543.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 778095961 is about 27894.3714931884. The cubic root of 778095961 is about 919.7667812278.

The spelling of 778095961 in words is "seven hundred seventy-eight million, ninety-five thousand, nine hundred sixty-one".