22986978749 has 16 divisors (see below), whose sum is σ = 26546634240. Its totient is φ = 19496505600.

The previous prime is 22986978719. The next prime is 22986978769. The reversal of 22986978749 is 94787968922.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22986978749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22986978719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315532 + ... + 1332890.

It is an arithmetic number, because the mean of its divisors is an integer number (1659164640).

Almost surely, 2^22986978749 is an apocalyptic number.

It is an amenable number.

22986978749 is a deficient number, since it is larger than the sum of its proper divisors (3559655491).

22986978749 is a wasteful number, since it uses less digits than its factorization.

22986978749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19340.

The product of its digits is 219469824, while the sum is 71.

The spelling of 22986978749 in words is "twenty-two billion, nine hundred eighty-six million, nine hundred seventy-eight thousand, seven hundred forty-nine".