22784785506 has 48 divisors (see below), whose sum is σ = 56463373824. Its totient is φ = 6504872832.

The previous prime is 22784785459. The next prime is 22784785531. The reversal of 22784785506 is 60558748722.

22784785506 is a `hidden beast` number, since 2 + 2 + 7 + 84 + 7 + 8 + 550 + 6 = 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, 93711 + ... + 233133.

It is an arithmetic number, because the mean of its divisors is an integer number (1176320288).

Almost surely, 2^22784785506 is an apocalyptic number.

22784785506 is an abundant number, since it is smaller than the sum of its proper divisors (33678588318).

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

22784785506 is a wasteful number, since it uses less digits than its factorization.

22784785506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140735 (or 140732 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 22784785506 in words is "twenty-two billion, seven hundred eighty-four million, seven hundred eighty-five thousand, five hundred six".