42113866628 has 6 divisors (see below), whose sum is σ = 73699266606. Its totient is φ = 21056933312.

The previous prime is 42113866609. The next prime is 42113866693. The reversal of 42113866628 is 82666831124.

42113866628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34906196224 + 7207670404 = 186832^2 + 84898^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5264233325 + ... + 5264233332.

It is an arithmetic number, because the mean of its divisors is an integer number (12283211101).

Almost surely, 2^42113866628 is an apocalyptic number.

It is an amenable number.

42113866628 is a deficient number, since it is larger than the sum of its proper divisors (31585399978).

42113866628 is a wasteful number, since it uses less digits than its factorization.

42113866628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10528466661 (or 10528466659 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The spelling of 42113866628 in words is "forty-two billion, one hundred thirteen million, eight hundred sixty-six thousand, six hundred twenty-eight".