428432250047 has 4 divisors (see below), whose sum is σ = 428540800296. Its totient is φ = 428323699800.

The previous prime is 428432250031. The next prime is 428432250091. The reversal of 428432250047 is 740052234824.

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 428432250047 - 2⁴ = 428432250031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428432249986 and 428432250013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428432250247) 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, 54269204 + ... + 54277097.

It is an arithmetic number, because the mean of its divisors is an integer number (107135200074).

Almost surely, 2^428432250047 is an apocalyptic number.

428432250047 is a deficient number, since it is larger than the sum of its proper divisors (108550249).

428432250047 is a wasteful number, since it uses less digits than its factorization.

428432250047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108550248.

The product of its (nonzero) digits is 430080, while the sum is 41.

The spelling of 428432250047 in words is "four hundred twenty-eight billion, four hundred thirty-two million, two hundred fifty thousand, forty-seven".