77912832727 has 2 divisors, whose sum is σ = 77912832728. Its totient is φ = 77912832726.

The previous prime is 77912832637. The next prime is 77912832941. The reversal of 77912832727 is 72723821977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77912832727 - 2¹⁵ = 77912799959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77912839727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38956416363 + 38956416364.

It is an arithmetic number, because the mean of its divisors is an integer number (38956416364).

Almost surely, 2^77912832727 is an apocalyptic number.

77912832727 is a deficient number, since it is larger than the sum of its proper divisors (1).

77912832727 is an equidigital number, since it uses as much as digits as its factorization.

77912832727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4148928, while the sum is 55.

The spelling of 77912832727 in words is "seventy-seven billion, nine hundred twelve million, eight hundred thirty-two thousand, seven hundred twenty-seven".