61314246247 has 2 divisors, whose sum is σ = 61314246248. Its totient is φ = 61314246246.

The previous prime is 61314246181. The next prime is 61314246251. The reversal of 61314246247 is 74264241316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61314246247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61314246347) 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, 30657123123 + 30657123124.

It is an arithmetic number, because the mean of its divisors is an integer number (30657123124).

Almost surely, 2^61314246247 is an apocalyptic number.

61314246247 is a deficient number, since it is larger than the sum of its proper divisors (1).

61314246247 is an equidigital number, since it uses as much as digits as its factorization.

61314246247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 40.

The spelling of 61314246247 in words is "sixty-one billion, three hundred fourteen million, two hundred forty-six thousand, two hundred forty-seven".