428433971719 has 8 divisors (see below), whose sum is σ = 469210608720. Its totient is φ = 388774502976.

The previous prime is 428433971717. The next prime is 428433971753. The reversal of 428433971719 is 917179334824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428433971719 - 2¹ = 428433971717 is a prime.

It is a super-2 number, since 2×428433971719² (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 (428433971711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279291262 + ... + 279292795.

It is an arithmetic number, because the mean of its divisors is an integer number (58651326090).

Almost surely, 2^428433971719 is an apocalyptic number.

428433971719 is a deficient number, since it is larger than the sum of its proper divisors (40776637001).

428433971719 is a wasteful number, since it uses less digits than its factorization.

428433971719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558584129.

The product of its digits is 9144576, while the sum is 58.

The spelling of 428433971719 in words is "four hundred twenty-eight billion, four hundred thirty-three million, nine hundred seventy-one thousand, seven hundred nineteen".