428458736161 has 4 divisors (see below), whose sum is σ = 429972724912. Its totient is φ = 426944747412.

The previous prime is 428458736129. The next prime is 428458736171. The reversal of 428458736161 is 161637854824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428458736161 - 2⁵ = 428458736129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428458736171) 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, 756993951 + ... + 756994516.

It is an arithmetic number, because the mean of its divisors is an integer number (107493181228).

Almost surely, 2^428458736161 is an apocalyptic number.

It is an amenable number.

428458736161 is a deficient number, since it is larger than the sum of its proper divisors (1513988751).

428458736161 is a wasteful number, since it uses less digits than its factorization.

428458736161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513988750.

The product of its digits is 7741440, while the sum is 55.

The spelling of 428458736161 in words is "four hundred twenty-eight billion, four hundred fifty-eight million, seven hundred thirty-six thousand, one hundred sixty-one".