61703159179 has 2 divisors, whose sum is σ = 61703159180. Its totient is φ = 61703159178.

The previous prime is 61703159117. The next prime is 61703159197. The reversal of 61703159179 is 97195130716.

Together with next prime (61703159197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61703159179 is a prime.

It is not a weakly prime, because it can be changed into another prime (61703159279) 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, 30851579589 + 30851579590.

It is an arithmetic number, because the mean of its divisors is an integer number (30851579590).

Almost surely, 2^61703159179 is an apocalyptic number.

61703159179 is a deficient number, since it is larger than the sum of its proper divisors (1).

61703159179 is an equidigital number, since it uses as much as digits as its factorization.

61703159179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 49.

The spelling of 61703159179 in words is "sixty-one billion, seven hundred three million, one hundred fifty-nine thousand, one hundred seventy-nine".