61452251640233 has 2 divisors, whose sum is σ = 61452251640234. Its totient is φ = 61452251640232.

The previous prime is 61452251640223. The next prime is 61452251640271. The reversal of 61452251640233 is 33204615225416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59271706211344 + 2180545428889 = 7698812^2 + 1476667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61452251640233 is a prime.

It is not a weakly prime, because it can be changed into another prime (61452251640223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30726125820116 + 30726125820117.

It is an arithmetic number, because the mean of its divisors is an integer number (30726125820117).

Almost surely, 2^{61452251640233} is an apocalyptic number.

It is an amenable number.

61452251640233 is a deficient number, since it is larger than the sum of its proper divisors (1).

61452251640233 is an equidigital number, since it uses as much as digits as its factorization.

61452251640233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 44.

Adding to 61452251640233 its reverse (33204615225416), we get a palindrome (94656866865649).

The spelling of 61452251640233 in words is "sixty-one trillion, four hundred fifty-two billion, two hundred fifty-one million, six hundred forty thousand, two hundred thirty-three".