22452477021649 has 2 divisors, whose sum is σ = 22452477021650. Its totient is φ = 22452477021648.

The previous prime is 22452477021593. The next prime is 22452477021697. The reversal of 22452477021649 is 94612077425422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20408420634624 + 2044056387025 = 4517568^2 + 1429705^2 .

It is a cyclic number.

It is not a de Polignac number, because 22452477021649 - 2¹⁹ = 22452476497361 is a prime.

It is a super-2 number, since 2×22452477021649² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22452477021649.

It is not a weakly prime, because it can be changed into another prime (22452477021449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11226238510824 + 11226238510825.

It is an arithmetic number, because the mean of its divisors is an integer number (11226238510825).

Almost surely, 2^{22452477021649} is an apocalyptic number.

It is an amenable number.

22452477021649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22452477021649 is an equidigital number, since it uses as much as digits as its factorization.

22452477021649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 22452477021649 in words is "twenty-two trillion, four hundred fifty-two billion, four hundred seventy-seven million, twenty-one thousand, six hundred forty-nine".