476097942821 has 2 divisors, whose sum is σ = 476097942822. Its totient is φ = 476097942820.

The previous prime is 476097942769. The next prime is 476097942829. The reversal of 476097942821 is 128249790674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252567558721 + 223530384100 = 502561^2 + 472790^2 .

It is a cyclic number.

It is not a de Polignac number, because 476097942821 - 2⁶ = 476097942757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476097942829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238048971410 + 238048971411.

It is an arithmetic number, because the mean of its divisors is an integer number (238048971411).

Almost surely, 2^476097942821 is an apocalyptic number.

It is an amenable number.

476097942821 is a deficient number, since it is larger than the sum of its proper divisors (1).

476097942821 is an equidigital number, since it uses as much as digits as its factorization.

476097942821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 476097942821 in words is "four hundred seventy-six billion, ninety-seven million, nine hundred forty-two thousand, eight hundred twenty-one".