428877031626 has 48 divisors (see below), whose sum is σ = 970221754944. Its totient is φ = 136660658112.

The previous prime is 428877031621. The next prime is 428877031633. The reversal of 428877031626 is 626130778824.

428877031626 is a `hidden beast` number, since 4 + 2 + 8 + 8 + 7 + 7 + 0 + 3 + 1 + 626 = 666.

It is not an unprimeable number, because it can be changed into a prime (428877031621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373405 + ... + 998591.

It is an arithmetic number, because the mean of its divisors is an integer number (20212953228).

Almost surely, 2^428877031626 is an apocalyptic number.

428877031626 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

428877031626 is an abundant number, since it is smaller than the sum of its proper divisors (541344723318).

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

428877031626 is a wasteful number, since it uses less digits than its factorization.

428877031626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626875 (or 626872 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 428877031626 in words is "four hundred twenty-eight billion, eight hundred seventy-seven million, thirty-one thousand, six hundred twenty-six".