778960862063 has 4 divisors (see below), whose sum is σ = 779139404328. Its totient is φ = 778782319800.

The previous prime is 778960862051. The next prime is 778960862089. The reversal of 778960862063 is 360268069877.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 778960862063 - 2⁸ = 778960861807 is a prime.

It is a super-2 number, since 2×778960862063² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 778960861987 and 778960862005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778960822063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89264588 + ... + 89273313.

It is an arithmetic number, because the mean of its divisors is an integer number (194784851082).

Almost surely, 2^778960862063 is an apocalyptic number.

778960862063 is a deficient number, since it is larger than the sum of its proper divisors (178542265).

778960862063 is a wasteful number, since it uses less digits than its factorization.

778960862063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178542264.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 778960862063 in words is "seven hundred seventy-eight billion, nine hundred sixty million, eight hundred sixty-two thousand, sixty-three".