428124329812 has 24 divisors (see below), whose sum is σ = 776854034432. Its totient is φ = 206227965600.

The previous prime is 428124329749. The next prime is 428124329813. The reversal of 428124329812 is 218923421824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428124329813) 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, 7713639 + ... + 7768942.

Almost surely, 2^428124329812 is an apocalyptic number.

It is an amenable number.

428124329812 is a deficient number, since it is larger than the sum of its proper divisors (348729704620).

428124329812 is a wasteful number, since it uses less digits than its factorization.

428124329812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15482839 (or 15482837 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The spelling of 428124329812 in words is "four hundred twenty-eight billion, one hundred twenty-four million, three hundred twenty-nine thousand, eight hundred twelve".