22878772799 has 4 divisors (see below), whose sum is σ = 23616797760. Its totient is φ = 22140747840.

The previous prime is 22878772793. The next prime is 22878772811. The reversal of 22878772799 is 99727787822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22878772799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22878772793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369012434 + ... + 369012495.

It is an arithmetic number, because the mean of its divisors is an integer number (5904199440).

Almost surely, 2^22878772799 is an apocalyptic number.

22878772799 is a deficient number, since it is larger than the sum of its proper divisors (738024961).

22878772799 is an equidigital number, since it uses as much as digits as its factorization.

22878772799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738024960.

The product of its digits is 99574272, while the sum is 68.

The spelling of 22878772799 in words is "twenty-two billion, eight hundred seventy-eight million, seven hundred seventy-two thousand, seven hundred ninety-nine".