61198910713 has 2 divisors, whose sum is σ = 61198910714. Its totient is φ = 61198910712.

The previous prime is 61198910653. The next prime is 61198910771. The reversal of 61198910713 is 31701989116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60829809769 + 369100944 = 246637^2 + 19212^2 .

It is a cyclic number.

It is not a de Polignac number, because 61198910713 - 2²⁵ = 61165356281 is a prime.

It is not a weakly prime, because it can be changed into another prime (61198310713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30599455356 + 30599455357.

It is an arithmetic number, because the mean of its divisors is an integer number (30599455357).

Almost surely, 2^61198910713 is an apocalyptic number.

It is an amenable number.

61198910713 is a deficient number, since it is larger than the sum of its proper divisors (1).

61198910713 is an equidigital number, since it uses as much as digits as its factorization.

61198910713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 46.

The spelling of 61198910713 in words is "sixty-one billion, one hundred ninety-eight million, nine hundred ten thousand, seven hundred thirteen".