61313841349 has 2 divisors, whose sum is σ = 61313841350. Its totient is φ = 61313841348.

The previous prime is 61313841307. The next prime is 61313841373. The reversal of 61313841349 is 94314831316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35772048225 + 25541793124 = 189135^2 + 159818^2 .

It is a cyclic number.

It is not a de Polignac number, because 61313841349 - 2²⁵ = 61280286917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61313844349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30656920674 + 30656920675.

It is an arithmetic number, because the mean of its divisors is an integer number (30656920675).

Almost surely, 2^61313841349 is an apocalyptic number.

It is an amenable number.

61313841349 is a deficient number, since it is larger than the sum of its proper divisors (1).

61313841349 is an equidigital number, since it uses as much as digits as its factorization.

61313841349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The spelling of 61313841349 in words is "sixty-one billion, three hundred thirteen million, eight hundred forty-one thousand, three hundred forty-nine".