59728711681 has 2 divisors, whose sum is σ = 59728711682. Its totient is φ = 59728711680.

The previous prime is 59728711649. The next prime is 59728711699. The reversal of 59728711681 is 18611782795.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47869501681 + 11859210000 = 218791^2 + 108900^2 .

It is a cyclic number.

It is not a de Polignac number, because 59728711681 - 2⁵ = 59728711649 is a prime.

It is a super-2 number, since 2×59728711681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (59728711631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29864355840 + 29864355841.

It is an arithmetic number, because the mean of its divisors is an integer number (29864355841).

Almost surely, 2^59728711681 is an apocalyptic number.

It is an amenable number.

59728711681 is a deficient number, since it is larger than the sum of its proper divisors (1).

59728711681 is an equidigital number, since it uses as much as digits as its factorization.

59728711681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 55.

The spelling of 59728711681 in words is "fifty-nine billion, seven hundred twenty-eight million, seven hundred eleven thousand, six hundred eighty-one".