22730156749 has 2 divisors, whose sum is σ = 22730156750. Its totient is φ = 22730156748.

The previous prime is 22730156653. The next prime is 22730156759. The reversal of 22730156749 is 94765103722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22342775625 + 387381124 = 149475^2 + 19682^2 .

It is a cyclic number.

It is not a de Polignac number, because 22730156749 - 2¹⁹ = 22729632461 is a prime.

It is a super-2 number, since 2×22730156749² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22730156699 and 22730156708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22730156759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11365078374 + 11365078375.

It is an arithmetic number, because the mean of its divisors is an integer number (11365078375).

Almost surely, 2^22730156749 is an apocalyptic number.

It is an amenable number.

22730156749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22730156749 is an equidigital number, since it uses as much as digits as its factorization.

22730156749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 22730156749 in words is "twenty-two billion, seven hundred thirty million, one hundred fifty-six thousand, seven hundred forty-nine".