64676939347 has 2 divisors, whose sum is σ = 64676939348. Its totient is φ = 64676939346.

The previous prime is 64676939333. The next prime is 64676939419. The reversal of 64676939347 is 74393967646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64676939347 - 2¹⁵ = 64676906579 is a prime.

It is not a weakly prime, because it can be changed into another prime (64676939317) 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, 32338469673 + 32338469674.

It is an arithmetic number, because the mean of its divisors is an integer number (32338469674).

Almost surely, 2^64676939347 is an apocalyptic number.

64676939347 is a deficient number, since it is larger than the sum of its proper divisors (1).

64676939347 is an equidigital number, since it uses as much as digits as its factorization.

64676939347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 64.

The spelling of 64676939347 in words is "sixty-four billion, six hundred seventy-six million, nine hundred thirty-nine thousand, three hundred forty-seven".