428262545778 has 16 divisors (see below), whose sum is σ = 893765313216. Its totient is φ = 136547478320.

The previous prime is 428262545749. The next prime is 428262545779. The reversal of 428262545778 is 877545262824.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428262545779) 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, 1551675753 + ... + 1551676028.

It is an arithmetic number, because the mean of its divisors is an integer number (55860332076).

Almost surely, 2^428262545778 is an apocalyptic number.

428262545778 is an abundant number, since it is smaller than the sum of its proper divisors (465502767438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428262545778 is a wasteful number, since it uses less digits than its factorization.

428262545778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103351809.

The product of its digits is 60211200, while the sum is 60.

The spelling of 428262545778 in words is "four hundred twenty-eight billion, two hundred sixty-two million, five hundred forty-five thousand, seven hundred seventy-eight".