401673634211 has 2 divisors, whose sum is σ = 401673634212. Its totient is φ = 401673634210.

The previous prime is 401673634199. The next prime is 401673634213. The reversal of 401673634211 is 112436376104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401673634211 - 2²² = 401669439907 is a prime.

It is a super-2 number, since 2×401673634211² (a number of 24 digits) contains 22 as substring.

Together with 401673634213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401673634213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200836817105 + 200836817106.

It is an arithmetic number, because the mean of its divisors is an integer number (200836817106).

Almost surely, 2^401673634211 is an apocalyptic number.

401673634211 is a deficient number, since it is larger than the sum of its proper divisors (1).

401673634211 is an equidigital number, since it uses as much as digits as its factorization.

401673634211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 401673634211 in words is "four hundred one billion, six hundred seventy-three million, six hundred thirty-four thousand, two hundred eleven".