22031867947 has 2 divisors, whose sum is σ = 22031867948. Its totient is φ = 22031867946.

The previous prime is 22031867939. The next prime is 22031867987. The reversal of 22031867947 is 74976813022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22031867947 - 2³ = 22031867939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22031867947.

It is not a weakly prime, because it can be changed into another prime (22031867917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015933973 + 11015933974.

It is an arithmetic number, because the mean of its divisors is an integer number (11015933974).

Almost surely, 2^22031867947 is an apocalyptic number.

22031867947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031867947 is an equidigital number, since it uses as much as digits as its factorization.

22031867947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 22031867947 in words is "twenty-two billion, thirty-one million, eight hundred sixty-seven thousand, nine hundred forty-seven".