421593645007 has 2 divisors, whose sum is σ = 421593645008. Its totient is φ = 421593645006.

The previous prime is 421593644939. The next prime is 421593645113. The reversal of 421593645007 is 700546395124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421593645007 - 2¹⁵ = 421593612239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421593640007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210796822503 + 210796822504.

It is an arithmetic number, because the mean of its divisors is an integer number (210796822504).

Almost surely, 2^421593645007 is an apocalyptic number.

421593645007 is a deficient number, since it is larger than the sum of its proper divisors (1).

421593645007 is an equidigital number, since it uses as much as digits as its factorization.

421593645007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 421593645007 in words is "four hundred twenty-one billion, five hundred ninety-three million, six hundred forty-five thousand, seven".