22309999979 has 2 divisors, whose sum is σ = 22309999980. Its totient is φ = 22309999978.

The previous prime is 22309999969. The next prime is 22309999993. The reversal of 22309999979 is 97999990322.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22309999979 is a prime.

It is a super-3 number, since 3×22309999979³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22309999919) 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 as a sum of consecutive naturals, namely, 11154999989 + 11154999990.

It is an arithmetic number, because the mean of its divisors is an integer number (11154999990).

Almost surely, 2^22309999979 is an apocalyptic number.

22309999979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22309999979 is an equidigital number, since it uses as much as digits as its factorization.

22309999979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44641044, while the sum is 68.

The spelling of 22309999979 in words is "twenty-two billion, three hundred nine million, nine hundred ninety-nine thousand, nine hundred seventy-nine".