421344441299 has 4 divisors (see below), whose sum is σ = 421346184264. Its totient is φ = 421342698336.

The previous prime is 421344441289. The next prime is 421344441317. The reversal of 421344441299 is 992144443124.

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 421344441299 - 2⁴ = 421344441283 is a prime.

It is a super-2 number, since 2×421344441299² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421344441229) 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, 436502 + ... + 1016475.

It is an arithmetic number, because the mean of its divisors is an integer number (105336546066).

Almost surely, 2^421344441299 is an apocalyptic number.

421344441299 is a deficient number, since it is larger than the sum of its proper divisors (1742965).

421344441299 is a wasteful number, since it uses less digits than its factorization.

421344441299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742964.

The product of its digits is 995328, while the sum is 47.

The spelling of 421344441299 in words is "four hundred twenty-one billion, three hundred forty-four million, four hundred forty-one thousand, two hundred ninety-nine".