22737973729 has 2 divisors, whose sum is σ = 22737973730. Its totient is φ = 22737973728.

The previous prime is 22737973703. The next prime is 22737973733. The reversal of 22737973729 is 92737973722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21222662400 + 1515311329 = 145680^2 + 38927^2 .

It is a cyclic number.

It is not a de Polignac number, because 22737973729 - 2¹⁵ = 22737940961 is a prime.

It is not a weakly prime, because it can be changed into another prime (22737973129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11368986864 + 11368986865.

It is an arithmetic number, because the mean of its divisors is an integer number (11368986865).

Almost surely, 2^22737973729 is an apocalyptic number.

It is an amenable number.

22737973729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22737973729 is an equidigital number, since it uses as much as digits as its factorization.

22737973729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14002632, while the sum is 58.

The spelling of 22737973729 in words is "twenty-two billion, seven hundred thirty-seven million, nine hundred seventy-three thousand, seven hundred twenty-nine".