61708601219 has 2 divisors, whose sum is σ = 61708601220. Its totient is φ = 61708601218.

The previous prime is 61708601197. The next prime is 61708601239. The reversal of 61708601219 is 91210680716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61708601219 - 2¹² = 61708597123 is a prime.

It is a super-2 number, since 2×61708601219² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (61708601239) 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, 30854300609 + 30854300610.

It is an arithmetic number, because the mean of its divisors is an integer number (30854300610).

Almost surely, 2^61708601219 is an apocalyptic number.

61708601219 is a deficient number, since it is larger than the sum of its proper divisors (1).

61708601219 is an equidigital number, since it uses as much as digits as its factorization.

61708601219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 61708601219 in words is "sixty-one billion, seven hundred eight million, six hundred one thousand, two hundred nineteen".