476468565864649 has 2 divisors, whose sum is σ = 476468565864650. Its totient is φ = 476468565864648.

The previous prime is 476468565864637. The next prime is 476468565864677. The reversal of 476468565864649 is 946468565864674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371674751361424 + 104793814503225 = 19278868^2 + 10236885^2 .

It is a cyclic number.

It is not a de Polignac number, because 476468565864649 - 2¹³ = 476468565856457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 476468565864649.

It is not a weakly prime, because it can be changed into another prime (476468565864749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238234282932324 + 238234282932325.

It is an arithmetic number, because the mean of its divisors is an integer number (238234282932325).

Almost surely, 2^{476468565864649} is an apocalyptic number.

It is an amenable number.

476468565864649 is a deficient number, since it is larger than the sum of its proper divisors (1).

476468565864649 is an equidigital number, since it uses as much as digits as its factorization.

476468565864649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200658124800, while the sum is 88.

The spelling of 476468565864649 in words is "four hundred seventy-six trillion, four hundred sixty-eight billion, five hundred sixty-five million, eight hundred sixty-four thousand, six hundred forty-nine".