671424431441 has 2 divisors, whose sum is σ = 671424431442. Its totient is φ = 671424431440.

The previous prime is 671424431407. The next prime is 671424431453. The reversal of 671424431441 is 144134424176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481608240400 + 189816191041 = 693980^2 + 435679^2 .

It is a cyclic number.

It is not a de Polignac number, because 671424431441 - 2²⁶ = 671357322577 is a prime.

It is not a weakly prime, because it can be changed into another prime (671420431441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335712215720 + 335712215721.

It is an arithmetic number, because the mean of its divisors is an integer number (335712215721).

Almost surely, 2^671424431441 is an apocalyptic number.

It is an amenable number.

671424431441 is a deficient number, since it is larger than the sum of its proper divisors (1).

671424431441 is an equidigital number, since it uses as much as digits as its factorization.

671424431441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 41.

The spelling of 671424431441 in words is "six hundred seventy-one billion, four hundred twenty-four million, four hundred thirty-one thousand, four hundred forty-one".