406777433393 has 2 divisors, whose sum is σ = 406777433394. Its totient is φ = 406777433392.

The previous prime is 406777433369. The next prime is 406777433407. The reversal of 406777433393 is 393334777604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210234171169 + 196543262224 = 458513^2 + 443332^2 .

It is a cyclic number.

It is not a de Polignac number, because 406777433393 - 2²⁴ = 406760656177 is a prime.

It is not a weakly prime, because it can be changed into another prime (406777438393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203388716696 + 203388716697.

It is an arithmetic number, because the mean of its divisors is an integer number (203388716697).

Almost surely, 2^406777433393 is an apocalyptic number.

It is an amenable number.

406777433393 is a deficient number, since it is larger than the sum of its proper divisors (1).

406777433393 is an equidigital number, since it uses as much as digits as its factorization.

406777433393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24004512, while the sum is 56.

The spelling of 406777433393 in words is "four hundred six billion, seven hundred seventy-seven million, four hundred thirty-three thousand, three hundred ninety-three".