421662262266127 has 2 divisors, whose sum is σ = 421662262266128. Its totient is φ = 421662262266126.

The previous prime is 421662262265999. The next prime is 421662262266139. The reversal of 421662262266127 is 721662262266124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421662262266127 - 2⁷ = 421662262265999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421662262866127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210831131133063 + 210831131133064.

It is an arithmetic number, because the mean of its divisors is an integer number (210831131133064).

Almost surely, 2^{421662262266127} is an apocalyptic number.

421662262266127 is a deficient number, since it is larger than the sum of its proper divisors (1).

421662262266127 is an equidigital number, since it uses as much as digits as its factorization.

421662262266127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592, while the sum is 55.

The spelling of 421662262266127 in words is "four hundred twenty-one trillion, six hundred sixty-two billion, two hundred sixty-two million, two hundred sixty-six thousand, one hundred twenty-seven".