447125865779 has 2 divisors, whose sum is σ = 447125865780. Its totient is φ = 447125865778.

The previous prime is 447125865623. The next prime is 447125865793. The reversal of 447125865779 is 977568521744.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447125865779 is a prime.

It is not a weakly prime, because it can be changed into another prime (447124865779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223562932889 + 223562932890.

It is an arithmetic number, because the mean of its divisors is an integer number (223562932890).

Almost surely, 2^447125865779 is an apocalyptic number.

447125865779 is a deficient number, since it is larger than the sum of its proper divisors (1).

447125865779 is an equidigital number, since it uses as much as digits as its factorization.

447125865779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118540800, while the sum is 65.

The spelling of 447125865779 in words is "four hundred forty-seven billion, one hundred twenty-five million, eight hundred sixty-five thousand, seven hundred seventy-nine".