776382821916 has 24 divisors (see below), whose sum is σ = 1950910681104. Its totient is φ = 238887022080.

The previous prime is 776382821899. The next prime is 776382821959. The reversal of 776382821916 is 619128283677.

It is a super-2 number, since 2×776382821916² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 776382821916.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2488406325 + ... + 2488406636.

It is an arithmetic number, because the mean of its divisors is an integer number (81287945046).

Almost surely, 2^776382821916 is an apocalyptic number.

It is an amenable number.

776382821916 is an abundant number, since it is smaller than the sum of its proper divisors (1174527859188).

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

776382821916 is a wasteful number, since it uses less digits than its factorization.

776382821916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976812981 (or 4976812979 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The spelling of 776382821916 in words is "seven hundred seventy-six billion, three hundred eighty-two million, eight hundred twenty-one thousand, nine hundred sixteen".