406687352033 has 2 divisors, whose sum is σ = 406687352034. Its totient is φ = 406687352032.

The previous prime is 406687352017. The next prime is 406687352039. The reversal of 406687352033 is 330253786604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385768936609 + 20918415424 = 621103^2 + 144632^2 .

It is a cyclic number.

It is not a de Polignac number, because 406687352033 - 2⁴ = 406687352017 is a prime.

It is a super-2 number, since 2×406687352033² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (406687352039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203343676016 + 203343676017.

It is an arithmetic number, because the mean of its divisors is an integer number (203343676017).

Almost surely, 2^406687352033 is an apocalyptic number.

It is an amenable number.

406687352033 is a deficient number, since it is larger than the sum of its proper divisors (1).

406687352033 is an equidigital number, since it uses as much as digits as its factorization.

406687352033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 406687352033 in words is "four hundred six billion, six hundred eighty-seven million, three hundred fifty-two thousand, thirty-three".