428656246161 has 64 divisors (see below), whose sum is σ = 686971514880. Its totient is φ = 234286640640.

The previous prime is 428656246141. The next prime is 428656246169. The reversal of 428656246161 is 161642656824.

It is not a de Polignac number, because 428656246161 - 2⁵ = 428656246129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428656246169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11454066 + ... + 11491428.

It is an arithmetic number, because the mean of its divisors is an integer number (10733929920).

Almost surely, 2^428656246161 is an apocalyptic number.

It is an amenable number.

428656246161 is a deficient number, since it is larger than the sum of its proper divisors (258315268719).

428656246161 is a wasteful number, since it uses less digits than its factorization.

428656246161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38006.

The product of its digits is 3317760, while the sum is 51.

The spelling of 428656246161 in words is "four hundred twenty-eight billion, six hundred fifty-six million, two hundred forty-six thousand, one hundred sixty-one".