22668471547 has 2 divisors, whose sum is σ = 22668471548. Its totient is φ = 22668471546.

The previous prime is 22668471487. The next prime is 22668471563. The reversal of 22668471547 is 74517486622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22668471547 - 2¹⁹ = 22667947259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22668471494 and 22668471503.

It is not a weakly prime, because it can be changed into another prime (22668471577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11334235773 + 11334235774.

It is an arithmetic number, because the mean of its divisors is an integer number (11334235774).

Almost surely, 2^22668471547 is an apocalyptic number.

22668471547 is a deficient number, since it is larger than the sum of its proper divisors (1).

22668471547 is an equidigital number, since it uses as much as digits as its factorization.

22668471547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 52.

The spelling of 22668471547 in words is "twenty-two billion, six hundred sixty-eight million, four hundred seventy-one thousand, five hundred forty-seven".