77824382834 has 16 divisors (see below), whose sum is σ = 127690421760. Its totient is φ = 35279877360.

The previous prime is 77824382821. The next prime is 77824382843. The reversal of 77824382834 is 43828342877.

It is a self number, because there is not a number n which added to its sum of digits gives 77824382834.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4733714 + ... + 4750125.

It is an arithmetic number, because the mean of its divisors is an integer number (7980651360).

Almost surely, 2^77824382834 is an apocalyptic number.

77824382834 is a deficient number, since it is larger than the sum of its proper divisors (49866038926).

77824382834 is a wasteful number, since it uses less digits than its factorization.

77824382834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484225.

The product of its digits is 14450688, while the sum is 56.

The spelling of 77824382834 in words is "seventy-seven billion, eight hundred twenty-four million, three hundred eighty-two thousand, eight hundred thirty-four".