428009037612 has 96 divisors (see below), whose sum is σ = 1094319932160. Its totient is φ = 129394195200.

The previous prime is 428009037581. The next prime is 428009037649. The reversal of 428009037612 is 216730900824.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18884487 + ... + 18907137.

It is an arithmetic number, because the mean of its divisors is an integer number (11399165960).

Almost surely, 2^428009037612 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 428009037612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547159966080).

428009037612 is an abundant number, since it is smaller than the sum of its proper divisors (666310894548).

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

428009037612 is a wasteful number, since it uses less digits than its factorization.

428009037612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24783 (or 24781 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 428009037612 in words is "four hundred twenty-eight billion, nine million, thirty-seven thousand, six hundred twelve".