428677649712 has 240 divisors, whose sum is σ = 1401355807488. Its totient is φ = 121113722880.

The previous prime is 428677649693. The next prime is 428677649731. The reversal of 428677649712 is 217946776824.

428677649712 is a `hidden beast` number, since 4 + 2 + 8 + 67 + 76 + 497 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (428677649693) and next prime (428677649731).

It is a self number, because there is not a number n which added to its sum of digits gives 428677649712.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1140513 + ... + 1469055.

Almost surely, 2^428677649712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428677649712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700677903744).

428677649712 is an abundant number, since it is smaller than the sum of its proper divisors (972678157776).

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

428677649712 is a wasteful number, since it uses less digits than its factorization.

428677649712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328628 (or 328619 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 428677649712 in words is "four hundred twenty-eight billion, six hundred seventy-seven million, six hundred forty-nine thousand, seven hundred twelve".