61217114641 has 2 divisors, whose sum is σ = 61217114642. Its totient is φ = 61217114640.

The previous prime is 61217114633. The next prime is 61217114653. The reversal of 61217114641 is 14641171216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32651044416 + 28566070225 = 180696^2 + 169015^2 .

It is a cyclic number.

It is not a de Polignac number, because 61217114641 - 2³ = 61217114633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61217114597 and 61217114606.

It is not a weakly prime, because it can be changed into another prime (61217114611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30608557320 + 30608557321.

It is an arithmetic number, because the mean of its divisors is an integer number (30608557321).

Almost surely, 2^61217114641 is an apocalyptic number.

It is an amenable number.

61217114641 is a deficient number, since it is larger than the sum of its proper divisors (1).

61217114641 is an equidigital number, since it uses as much as digits as its factorization.

61217114641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

Adding to 61217114641 its reverse (14641171216), we get a palindrome (75858285857).

The spelling of 61217114641 in words is "sixty-one billion, two hundred seventeen million, one hundred fourteen thousand, six hundred forty-one".