42783902556 has 24 divisors (see below), whose sum is σ = 100591163904. Its totient is φ = 14152435440.

The previous prime is 42783902543. The next prime is 42783902611. The reversal of 42783902556 is 65520938724.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42783902499 and 42783902508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13606540 + ... + 13609683.

It is an arithmetic number, because the mean of its divisors is an integer number (4191298496).

Almost surely, 2^42783902556 is an apocalyptic number.

It is an amenable number.

42783902556 is an abundant number, since it is smaller than the sum of its proper divisors (57807261348).

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

42783902556 is a wasteful number, since it uses less digits than its factorization.

42783902556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27216361 (or 27216359 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 42783902556 in words is "forty-two billion, seven hundred eighty-three million, nine hundred two thousand, five hundred fifty-six".