389277307697 has 2 divisors, whose sum is σ = 389277307698. Its totient is φ = 389277307696.

The previous prime is 389277307621. The next prime is 389277307759. The reversal of 389277307697 is 796703772983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261602583841 + 127674723856 = 511471^2 + 357316^2 .

It is a cyclic number.

It is not a de Polignac number, because 389277307697 - 2²² = 389273113393 is a prime.

It is not a weakly prime, because it can be changed into another prime (389277307997) 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 as a sum of consecutive naturals, namely, 194638653848 + 194638653849.

It is an arithmetic number, because the mean of its divisors is an integer number (194638653849).

Almost surely, 2^389277307697 is an apocalyptic number.

It is an amenable number.

389277307697 is a deficient number, since it is larger than the sum of its proper divisors (1).

389277307697 is an equidigital number, since it uses as much as digits as its factorization.

389277307697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168031584, while the sum is 68.

The spelling of 389277307697 in words is "three hundred eighty-nine billion, two hundred seventy-seven million, three hundred seven thousand, six hundred ninety-seven".