64786377368879 has 2 divisors, whose sum is σ = 64786377368880. Its totient is φ = 64786377368878.

The previous prime is 64786377368623. The next prime is 64786377368891. The reversal of 64786377368879 is 97886377368746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64786377368879 - 2⁸ = 64786377368623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64786377368794 and 64786377368803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64786373368879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32393188684439 + 32393188684440.

It is an arithmetic number, because the mean of its divisors is an integer number (32393188684440).

Almost surely, 2^{64786377368879} is an apocalyptic number.

64786377368879 is a deficient number, since it is larger than the sum of its proper divisors (1).

64786377368879 is an equidigital number, since it uses as much as digits as its factorization.

64786377368879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86032171008, while the sum is 89.

The spelling of 64786377368879 in words is "sixty-four trillion, seven hundred eighty-six billion, three hundred seventy-seven million, three hundred sixty-eight thousand, eight hundred seventy-nine".