778837463466 has 32 divisors (see below), whose sum is σ = 1585715028480. Its totient is φ = 254948242416.

The previous prime is 778837463419. The next prime is 778837463473. The reversal of 778837463466 is 664364738877.

It is a self number, because there is not a number n which added to its sum of digits gives 778837463466.

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 15 ways as a sum of consecutive naturals, for example, 795276 + ... + 1479911.

It is an arithmetic number, because the mean of its divisors is an integer number (49553594640).

Almost surely, 2^778837463466 is an apocalyptic number.

778837463466 is an abundant number, since it is smaller than the sum of its proper divisors (806877565014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

778837463466 is a wasteful number, since it uses less digits than its factorization.

778837463466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276218.

The product of its digits is 682795008, while the sum is 69.

The spelling of 778837463466 in words is "seven hundred seventy-eight billion, eight hundred thirty-seven million, four hundred sixty-three thousand, four hundred sixty-six".