476052013557721 has 2 divisors, whose sum is σ = 476052013557722. Its totient is φ = 476052013557720.

The previous prime is 476052013557649. The next prime is 476052013557751. The reversal of 476052013557721 is 127755310250674.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472021856932096 + 4030156625625 = 21726064^2 + 2007525^2 .

It is a cyclic number.

It is not a de Polignac number, because 476052013557721 - 2⁹ = 476052013557209 is a prime.

It is a super-2 number, since 2×476052013557721² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (476052013557751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238026006778860 + 238026006778861.

It is an arithmetic number, because the mean of its divisors is an integer number (238026006778861).

Almost surely, 2^{476052013557721} is an apocalyptic number.

It is an amenable number.

476052013557721 is a deficient number, since it is larger than the sum of its proper divisors (1).

476052013557721 is an equidigital number, since it uses as much as digits as its factorization.

476052013557721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 476052013557721 in words is "four hundred seventy-six trillion, fifty-two billion, thirteen million, five hundred fifty-seven thousand, seven hundred twenty-one".