77828552839 has 6 divisors (see below), whose sum is σ = 82676006264. Its totient is φ = 73250402400.

The previous prime is 77828552819. The next prime is 77828552843. The reversal of 77828552839 is 93825582877.

It is not a de Polignac number, because 77828552839 - 2¹⁷ = 77828421767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77828552819) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 134651187 + ... + 134651764.

Almost surely, 2^77828552839 is an apocalyptic number.

77828552839 is a deficient number, since it is larger than the sum of its proper divisors (4847453425).

77828552839 is a wasteful number, since it uses less digits than its factorization.

77828552839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269302985 (or 269302968 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 64.

The spelling of 77828552839 in words is "seventy-seven billion, eight hundred twenty-eight million, five hundred fifty-two thousand, eight hundred thirty-nine".