477386808889 has 2 divisors, whose sum is σ = 477386808890. Its totient is φ = 477386808888.

The previous prime is 477386808863. The next prime is 477386808901. The reversal of 477386808889 is 988808683774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412497907600 + 64888901289 = 642260^2 + 254733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477386808889 is a prime.

It is not a weakly prime, because it can be changed into another prime (477386802889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238693404444 + 238693404445.

It is an arithmetic number, because the mean of its divisors is an integer number (238693404445).

Almost surely, 2^477386808889 is an apocalyptic number.

It is an amenable number.

477386808889 is a deficient number, since it is larger than the sum of its proper divisors (1).

477386808889 is an equidigital number, since it uses as much as digits as its factorization.

477386808889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1040449536, while the sum is 76.

The spelling of 477386808889 in words is "four hundred seventy-seven billion, three hundred eighty-six million, eight hundred eight thousand, eight hundred eighty-nine".