77828000655 has 8 divisors (see below), whose sum is σ = 124524801072. Its totient is φ = 41508267008.

The previous prime is 77828000647. The next prime is 77828000687. The reversal of 77828000655 is 55600082877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77828000655 - 2³ = 77828000647 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2594266674 + ... + 2594266703.

It is an arithmetic number, because the mean of its divisors is an integer number (15565600134).

Almost surely, 2^77828000655 is an apocalyptic number.

77828000655 is a deficient number, since it is larger than the sum of its proper divisors (46696800417).

77828000655 is a wasteful number, since it uses less digits than its factorization.

77828000655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188533385.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 77828000655 in words is "seventy-seven billion, eight hundred twenty-eight million, six hundred fifty-five", and thus it is an aban number.