77728670703067 has 2 divisors, whose sum is σ = 77728670703068. Its totient is φ = 77728670703066.

The previous prime is 77728670703059. The next prime is 77728670703091. The reversal of 77728670703067 is 76030707682777.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77728670703067 - 2³ = 77728670703059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77728670702993 and 77728670703011.

It is not a weakly prime, because it can be changed into another prime (77728670701067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38864335351533 + 38864335351534.

It is an arithmetic number, because the mean of its divisors is an integer number (38864335351534).

Almost surely, 2^{77728670703067} is an apocalyptic number.

77728670703067 is a deficient number, since it is larger than the sum of its proper divisors (1).

77728670703067 is an equidigital number, since it uses as much as digits as its factorization.

77728670703067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 203297472, while the sum is 67.

The spelling of 77728670703067 in words is "seventy-seven trillion, seven hundred twenty-eight billion, six hundred seventy million, seven hundred three thousand, sixty-seven".