61452251640271 has 2 divisors, whose sum is σ = 61452251640272. Its totient is φ = 61452251640270.

The previous prime is 61452251640233. The next prime is 61452251640287. The reversal of 61452251640271 is 17204615225416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61452251640271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61452251640211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30726125820135 + 30726125820136.

It is an arithmetic number, because the mean of its divisors is an integer number (30726125820136).

Almost surely, 2^{61452251640271} is an apocalyptic number.

61452251640271 is a deficient number, since it is larger than the sum of its proper divisors (1).

61452251640271 is an equidigital number, since it uses as much as digits as its factorization.

61452251640271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 46.

Adding to 61452251640271 its reverse (17204615225416), we get a palindrome (78656866865687).

The spelling of 61452251640271 in words is "sixty-one trillion, four hundred fifty-two billion, two hundred fifty-one million, six hundred forty thousand, two hundred seventy-one".