42787000428 has 12 divisors (see below), whose sum is σ = 99836334360. Its totient is φ = 14262333472.

The previous prime is 42787000427. The next prime is 42787000453. The reversal of 42787000428 is 82400078724.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 42787000428.

It is not an unprimeable number, because it can be changed into a prime (42787000427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782791673 + ... + 1782791696.

It is an arithmetic number, because the mean of its divisors is an integer number (8319694530).

Almost surely, 2^42787000428 is an apocalyptic number.

It is an amenable number.

42787000428 is an abundant number, since it is smaller than the sum of its proper divisors (57049333932).

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

42787000428 is a wasteful number, since it uses less digits than its factorization.

42787000428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565583376 (or 3565583374 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The spelling of 42787000428 in words is "forty-two billion, seven hundred eighty-seven million, four hundred twenty-eight", and thus it is an aban number.