421442012004487 has 2 divisors, whose sum is σ = 421442012004488. Its totient is φ = 421442012004486.

The previous prime is 421442012004439. The next prime is 421442012004493. The reversal of 421442012004487 is 784400210244124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421442012004487 - 2¹⁹ = 421442011480199 is a prime.

It is a super-2 number, since 2×421442012004487² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421442012004407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210721006002243 + 210721006002244.

It is an arithmetic number, because the mean of its divisors is an integer number (210721006002244).

Almost surely, 2^{421442012004487} is an apocalyptic number.

421442012004487 is a deficient number, since it is larger than the sum of its proper divisors (1).

421442012004487 is an equidigital number, since it uses as much as digits as its factorization.

421442012004487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 458752, while the sum is 43.

The spelling of 421442012004487 in words is "four hundred twenty-one trillion, four hundred forty-two billion, twelve million, four thousand, four hundred eighty-seven".