56677745347 has 2 divisors, whose sum is σ = 56677745348. Its totient is φ = 56677745346.

The previous prime is 56677745317. The next prime is 56677745359. The reversal of 56677745347 is 74354777665.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56677745347 is a prime.

It is not a weakly prime, because it can be changed into another prime (56677745317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28338872673 + 28338872674.

It is an arithmetic number, because the mean of its divisors is an integer number (28338872674).

Almost surely, 2^56677745347 is an apocalyptic number.

56677745347 is a deficient number, since it is larger than the sum of its proper divisors (1).

56677745347 is an equidigital number, since it uses as much as digits as its factorization.

56677745347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103723200, while the sum is 61.

The spelling of 56677745347 in words is "fifty-six billion, six hundred seventy-seven million, seven hundred forty-five thousand, three hundred forty-seven".