61365657225127 has 2 divisors, whose sum is σ = 61365657225128. Its totient is φ = 61365657225126.

The previous prime is 61365657225113. The next prime is 61365657225139. The reversal of 61365657225127 is 72152275656316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61365657225127 is a prime.

It is a super-2 number, since 2×61365657225127² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61365657225167) 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, 30682828612563 + 30682828612564.

It is an arithmetic number, because the mean of its divisors is an integer number (30682828612564).

Almost surely, 2^{61365657225127} is an apocalyptic number.

61365657225127 is a deficient number, since it is larger than the sum of its proper divisors (1).

61365657225127 is an equidigital number, since it uses as much as digits as its factorization.

61365657225127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752000, while the sum is 58.

The spelling of 61365657225127 in words is "sixty-one trillion, three hundred sixty-five billion, six hundred fifty-seven million, two hundred twenty-five thousand, one hundred twenty-seven".