22878415652 has 36 divisors (see below), whose sum is σ = 44380116480. Its totient is φ = 10298200704.

The previous prime is 22878415633. The next prime is 22878415657. The reversal of 22878415652 is 25651487822.

It is a self number, because there is not a number n which added to its sum of digits gives 22878415652.

It is not an unprimeable number, because it can be changed into a prime (22878415657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403652 + ... + 456827.

Almost surely, 2^22878415652 is an apocalyptic number.

It is an amenable number.

22878415652 is a deficient number, since it is larger than the sum of its proper divisors (21501700828).

22878415652 is a wasteful number, since it uses less digits than its factorization.

22878415652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860540 (or 860521 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 50.

The spelling of 22878415652 in words is "twenty-two billion, eight hundred seventy-eight million, four hundred fifteen thousand, six hundred fifty-two".