477454877447 has 2 divisors, whose sum is σ = 477454877448. Its totient is φ = 477454877446.

The previous prime is 477454877423. The next prime is 477454877461. The reversal of 477454877447 is 744778454774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 477454877447 - 2¹⁸ = 477454615303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477454877477) 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, 238727438723 + 238727438724.

It is an arithmetic number, because the mean of its divisors is an integer number (238727438724).

Almost surely, 2^477454877447 is an apocalyptic number.

477454877447 is a deficient number, since it is larger than the sum of its proper divisors (1).

477454877447 is an equidigital number, since it uses as much as digits as its factorization.

477454877447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688414720, while the sum is 68.

The spelling of 477454877447 in words is "four hundred seventy-seven billion, four hundred fifty-four million, eight hundred seventy-seven thousand, four hundred forty-seven".