61716902047 has 2 divisors, whose sum is σ = 61716902048. Its totient is φ = 61716902046.

The previous prime is 61716902021. The next prime is 61716902083. The reversal of 61716902047 is 74020961716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61716902047 - 2⁷ = 61716901919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61716901994 and 61716902012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61716932047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30858451023 + 30858451024.

It is an arithmetic number, because the mean of its divisors is an integer number (30858451024).

Almost surely, 2^61716902047 is an apocalyptic number.

61716902047 is a deficient number, since it is larger than the sum of its proper divisors (1).

61716902047 is an equidigital number, since it uses as much as digits as its factorization.

61716902047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 61716902047 in words is "sixty-one billion, seven hundred sixteen million, nine hundred two thousand, forty-seven".