61730615753 has 2 divisors, whose sum is σ = 61730615754. Its totient is φ = 61730615752.

The previous prime is 61730615741. The next prime is 61730615773. The reversal of 61730615753 is 35751603716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34170631609 + 27559984144 = 184853^2 + 166012^2 .

It is a cyclic number.

It is not a de Polignac number, because 61730615753 - 2³⁰ = 60656873929 is a prime.

It is not a weakly prime, because it can be changed into another prime (61730615773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30865307876 + 30865307877.

It is an arithmetic number, because the mean of its divisors is an integer number (30865307877).

Almost surely, 2^61730615753 is an apocalyptic number.

It is an amenable number.

61730615753 is a deficient number, since it is larger than the sum of its proper divisors (1).

61730615753 is an equidigital number, since it uses as much as digits as its factorization.

61730615753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 44.

The spelling of 61730615753 in words is "sixty-one billion, seven hundred thirty million, six hundred fifteen thousand, seven hundred fifty-three".