421414142012447 has 2 divisors, whose sum is σ = 421414142012448. Its totient is φ = 421414142012446.

The previous prime is 421414142012329. The next prime is 421414142012449. The reversal of 421414142012447 is 744210241414124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421414142012447 - 2²⁸ = 421413873576991 is a prime.

It is a super-2 number, since 2×421414142012447² (a number of 30 digits) contains 22 as substring.

Together with 421414142012449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421414142012449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210707071006223 + 210707071006224.

It is an arithmetic number, because the mean of its divisors is an integer number (210707071006224).

Almost surely, 2^{421414142012447} is an apocalyptic number.

421414142012447 is a deficient number, since it is larger than the sum of its proper divisors (1).

421414142012447 is an equidigital number, since it uses as much as digits as its factorization.

421414142012447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229376, while the sum is 41.

The spelling of 421414142012447 in words is "four hundred twenty-one trillion, four hundred fourteen billion, one hundred forty-two million, twelve thousand, four hundred forty-seven".