477887613857 has 2 divisors, whose sum is σ = 477887613858. Its totient is φ = 477887613856.

The previous prime is 477887613829. The next prime is 477887613869. The reversal of 477887613857 is 758316788774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360049201681 + 117838412176 = 600041^2 + 343276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477887613857 is a prime.

It is not a weakly prime, because it can be changed into another prime (477887613257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238943806928 + 238943806929.

It is an arithmetic number, because the mean of its divisors is an integer number (238943806929).

Almost surely, 2^477887613857 is an apocalyptic number.

It is an amenable number.

477887613857 is a deficient number, since it is larger than the sum of its proper divisors (1).

477887613857 is an equidigital number, since it uses as much as digits as its factorization.

477887613857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442552320, while the sum is 71.

The spelling of 477887613857 in words is "four hundred seventy-seven billion, eight hundred eighty-seven million, six hundred thirteen thousand, eight hundred fifty-seven".