421770126199 has 2 divisors, whose sum is σ = 421770126200. Its totient is φ = 421770126198.

The previous prime is 421770126121. The next prime is 421770126229. The reversal of 421770126199 is 991621077124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421770126199 - 2²¹ = 421768029047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421770124199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210885063099 + 210885063100.

It is an arithmetic number, because the mean of its divisors is an integer number (210885063100).

Almost surely, 2^421770126199 is an apocalyptic number.

421770126199 is a deficient number, since it is larger than the sum of its proper divisors (1).

421770126199 is an equidigital number, since it uses as much as digits as its factorization.

421770126199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 421770126199 in words is "four hundred twenty-one billion, seven hundred seventy million, one hundred twenty-six thousand, one hundred ninety-nine".