61461829193 has 2 divisors, whose sum is σ = 61461829194. Its totient is φ = 61461829192.

The previous prime is 61461829159. The next prime is 61461829199. The reversal of 61461829193 is 39192816416.

61461829193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58391339449 + 3070489744 = 241643^2 + 55412^2 .

It is a cyclic number.

It is not a de Polignac number, because 61461829193 - 2¹² = 61461825097 is a prime.

It is not a weakly prime, because it can be changed into another prime (61461829199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30730914596 + 30730914597.

It is an arithmetic number, because the mean of its divisors is an integer number (30730914597).

Almost surely, 2^61461829193 is an apocalyptic number.

It is an amenable number.

61461829193 is a deficient number, since it is larger than the sum of its proper divisors (1).

61461829193 is an equidigital number, since it uses as much as digits as its factorization.

61461829193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 50.

The spelling of 61461829193 in words is "sixty-one billion, four hundred sixty-one million, eight hundred twenty-nine thousand, one hundred ninety-three".