22069776481 has 9 divisors (see below), whose sum is σ = 22502072019. Its totient is φ = 21645640536.

The previous prime is 22069776437. The next prime is 22069776557. The reversal of 22069776481 is 18467796022.

The square root of 22069776481 is 148559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15910038225 + 6159738256 = 126135^2 + 78484^2 .

It is not a de Polignac number, because 22069776481 - 2⁷ = 22069776353 is a prime.

It is a super-2 number, since 2×22069776481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22069771481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7872226 + ... + 7875028.

Almost surely, 2^22069776481 is an apocalyptic number.

22069776481 is the 148559-th square number.

22069776481 is the 74280-th centered octagonal number.

It is an amenable number.

22069776481 is a deficient number, since it is larger than the sum of its proper divisors (432295538).

22069776481 is an frugal number, since it uses more digits than its factorization.

22069776481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 2856 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 22069776481 in words is "twenty-two billion, sixty-nine million, seven hundred seventy-six thousand, four hundred eighty-one".