428100339912 has 128 divisors (see below), whose sum is σ = 1319529657600. Its totient is φ = 112947314688.

The previous prime is 428100339893. The next prime is 428100339913. The reversal of 428100339912 is 219933001824.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (428100339913) 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 31 ways as a sum of consecutive naturals, for example, 1262737 + ... + 1565472.

It is an arithmetic number, because the mean of its divisors is an integer number (10308825450).

Almost surely, 2^428100339912 is an apocalyptic number.

428100339912 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

428100339912 is an abundant number, since it is smaller than the sum of its proper divisors (891429317688).

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

428100339912 is a wasteful number, since it uses less digits than its factorization.

428100339912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828295 (or 2828291 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 428100339912 in words is "four hundred twenty-eight billion, one hundred million, three hundred thirty-nine thousand, nine hundred twelve".