2785566042 has 48 divisors (see below), whose sum is σ = 7303338432. Its totient is φ = 749059200.

The previous prime is 2785566023. The next prime is 2785566073. The reversal of 2785566042 is 2406655872.

2785566042 is a `hidden beast` number, since 2 + 7 + 85 + 566 + 0 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 648084 + ... + 652367.

It is an arithmetic number, because the mean of its divisors is an integer number (152152884).

Almost surely, 2^2785566042 is an apocalyptic number.

2785566042 is an abundant number, since it is smaller than the sum of its proper divisors (4517772390).

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

2785566042 is a wasteful number, since it uses less digits than its factorization.

2785566042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300483 (or 1300480 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 2785566042 is about 52778.4619139285. The cubic root of 2785566042 is about 1407.0336581919.

The spelling of 2785566042 in words is "two billion, seven hundred eighty-five million, five hundred sixty-six thousand, forty-two".