476846667421 has 2 divisors, whose sum is σ = 476846667422. Its totient is φ = 476846667420.

The previous prime is 476846667317. The next prime is 476846667503. The reversal of 476846667421 is 124766648674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386193888025 + 90652779396 = 621445^2 + 301086^2 .

It is a cyclic number.

It is not a de Polignac number, because 476846667421 - 2⁷ = 476846667293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 476846667421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476846667221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238423333710 + 238423333711.

It is an arithmetic number, because the mean of its divisors is an integer number (238423333711).

Almost surely, 2^476846667421 is an apocalyptic number.

It is an amenable number.

476846667421 is a deficient number, since it is larger than the sum of its proper divisors (1).

476846667421 is an equidigital number, since it uses as much as digits as its factorization.

476846667421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65028096, while the sum is 61.

The spelling of 476846667421 in words is "four hundred seventy-six billion, eight hundred forty-six million, six hundred sixty-seven thousand, four hundred twenty-one".