61180719673 has 2 divisors, whose sum is σ = 61180719674. Its totient is φ = 61180719672.

The previous prime is 61180719583. The next prime is 61180719683. The reversal of 61180719673 is 37691708116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46605469689 + 14575249984 = 215883^2 + 120728^2 .

It is a cyclic number.

It is not a de Polignac number, because 61180719673 - 2²⁹ = 60643848761 is a prime.

It is not a weakly prime, because it can be changed into another prime (61180719683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30590359836 + 30590359837.

It is an arithmetic number, because the mean of its divisors is an integer number (30590359837).

Almost surely, 2^61180719673 is an apocalyptic number.

It is an amenable number.

61180719673 is a deficient number, since it is larger than the sum of its proper divisors (1).

61180719673 is an equidigital number, since it uses as much as digits as its factorization.

61180719673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 61180719673 in words is "sixty-one billion, one hundred eighty million, seven hundred nineteen thousand, six hundred seventy-three".