428040568845 has 24 divisors (see below), whose sum is σ = 774195117696. Its totient is φ = 218362724448.

The previous prime is 428040568843. The next prime is 428040568849. The reversal of 428040568845 is 548865040824.

428040568845 is a `hidden beast` number, since 42 + 80 + 405 + 6 + 88 + 45 = 666.

It is not a de Polignac number, because 428040568845 - 2¹ = 428040568843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428040568791 and 428040568800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428040568843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206781849 + ... + 206783918.

It is an arithmetic number, because the mean of its divisors is an integer number (32258129904).

Almost surely, 2^428040568845 is an apocalyptic number.

428040568845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

428040568845 is a deficient number, since it is larger than the sum of its proper divisors (346154548851).

428040568845 is a wasteful number, since it uses less digits than its factorization.

428040568845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413565801 (or 413565798 counting only the distinct ones).

The product of its (nonzero) digits is 9830400, while the sum is 54.

The spelling of 428040568845 in words is "four hundred twenty-eight billion, forty million, five hundred sixty-eight thousand, eight hundred forty-five".