422628251028 has 48 divisors (see below), whose sum is σ = 1024188512256. Its totient is φ = 135495283680.

The previous prime is 422628250973. The next prime is 422628251033. The reversal of 422628251028 is 820152826224.

It is a happy number.

422628251028 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×422628251028² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3424326 + ... + 3545597.

It is an arithmetic number, because the mean of its divisors is an integer number (21337260672).

Almost surely, 2^422628251028 is an apocalyptic number.

It is an amenable number.

422628251028 is an abundant number, since it is smaller than the sum of its proper divisors (601560261228).

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

422628251028 is a wasteful number, since it uses less digits than its factorization.

422628251028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970124 (or 6970122 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 422628251028 in words is "four hundred twenty-two billion, six hundred twenty-eight million, two hundred fifty-one thousand, twenty-eight".