481766942857 has 2 divisors, whose sum is σ = 481766942858. Its totient is φ = 481766942856.

The previous prime is 481766942807. The next prime is 481766942893. The reversal of 481766942857 is 758249667184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387368067321 + 94398875536 = 622389^2 + 307244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481766942857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 481766942792 and 481766942801.

It is not a weakly prime, because it can be changed into another prime (481766942807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240883471428 + 240883471429.

It is an arithmetic number, because the mean of its divisors is an integer number (240883471429).

Almost surely, 2^481766942857 is an apocalyptic number.

It is an amenable number.

481766942857 is a deficient number, since it is larger than the sum of its proper divisors (1).

481766942857 is an equidigital number, since it uses as much as digits as its factorization.

481766942857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162570240, while the sum is 67.

The spelling of 481766942857 in words is "four hundred eighty-one billion, seven hundred sixty-six million, nine hundred forty-two thousand, eight hundred fifty-seven".