421806714211 has 4 divisors (see below), whose sum is σ = 440146136592. Its totient is φ = 403467291832.

The previous prime is 421806714179. The next prime is 421806714233. The reversal of 421806714211 is 112417608124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421806714211 - 2⁵ = 421806714179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421806714911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9169711156 + ... + 9169711201.

It is an arithmetic number, because the mean of its divisors is an integer number (110036534148).

Almost surely, 2^421806714211 is an apocalyptic number.

421806714211 is a deficient number, since it is larger than the sum of its proper divisors (18339422381).

421806714211 is a wasteful number, since it uses less digits than its factorization.

421806714211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18339422380.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 421806714211 in words is "four hundred twenty-one billion, eight hundred six million, seven hundred fourteen thousand, two hundred eleven".