22449170729 has 2 divisors, whose sum is σ = 22449170730. Its totient is φ = 22449170728.

The previous prime is 22449170699. The next prime is 22449170741. The reversal of 22449170729 is 92707194422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22372082329 + 77088400 = 149573^2 + 8780^2 .

It is a cyclic number.

It is not a de Polignac number, because 22449170729 - 2⁸ = 22449170473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22449170749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11224585364 + 11224585365.

It is an arithmetic number, because the mean of its divisors is an integer number (11224585365).

Almost surely, 2^22449170729 is an apocalyptic number.

It is an amenable number.

22449170729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22449170729 is an equidigital number, since it uses as much as digits as its factorization.

22449170729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 22449170729 in words is "twenty-two billion, four hundred forty-nine million, one hundred seventy thousand, seven hundred twenty-nine".