420444080719 has 4 divisors (see below), whose sum is σ = 452785933096. Its totient is φ = 388102228344.

The previous prime is 420444080687. The next prime is 420444080731. The reversal of 420444080719 is 917080444024.

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 420444080719 - 2⁵ = 420444080687 is a prime.

It is a super-2 number, since 2×420444080719² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420444080519) 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, 16170926169 + ... + 16170926194.

It is an arithmetic number, because the mean of its divisors is an integer number (113196483274).

Almost surely, 2^420444080719 is an apocalyptic number.

420444080719 is a deficient number, since it is larger than the sum of its proper divisors (32341852377).

420444080719 is a wasteful number, since it uses less digits than its factorization.

420444080719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32341852376.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 420444080719 in words is "four hundred twenty billion, four hundred forty-four million, eighty thousand, seven hundred nineteen".