22649759449 has 2 divisors, whose sum is σ = 22649759450. Its totient is φ = 22649759448.

The previous prime is 22649759417. The next prime is 22649759471. The reversal of 22649759449 is 94495794622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21763625625 + 886133824 = 147525^2 + 29768^2 .

It is a cyclic number.

It is not a de Polignac number, because 22649759449 - 2⁵ = 22649759417 is a prime.

It is not a weakly prime, because it can be changed into another prime (22649759479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11324879724 + 11324879725.

It is an arithmetic number, because the mean of its divisors is an integer number (11324879725).

Almost surely, 2^22649759449 is an apocalyptic number.

It is an amenable number.

22649759449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22649759449 is an equidigital number, since it uses as much as digits as its factorization.

22649759449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 61.

The spelling of 22649759449 in words is "twenty-two billion, six hundred forty-nine million, seven hundred fifty-nine thousand, four hundred forty-nine".