428512037618 has 16 divisors (see below), whose sum is σ = 745556126784. Its totient is φ = 180907000560.

The previous prime is 428512037617. The next prime is 428512037623. The reversal of 428512037618 is 816730215824.

It is a super-2 number, since 2×428512037618² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428512037617) 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, 228416993 + ... + 228418868.

It is an arithmetic number, because the mean of its divisors is an integer number (46597257924).

Almost surely, 2^428512037618 is an apocalyptic number.

428512037618 is a deficient number, since it is larger than the sum of its proper divisors (317044089166).

428512037618 is a wasteful number, since it uses less digits than its factorization.

428512037618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456835937.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 428512037618 in words is "four hundred twenty-eight billion, five hundred twelve million, thirty-seven thousand, six hundred eighteen".