60627645721 has 2 divisors, whose sum is σ = 60627645722. Its totient is φ = 60627645720.

The previous prime is 60627645667. The next prime is 60627645733. The reversal of 60627645721 is 12754672606.

60627645721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59241126025 + 1386519696 = 243395^2 + 37236^2 .

It is a cyclic number.

It is not a de Polignac number, because 60627645721 - 2¹⁵ = 60627612953 is a prime.

It is a super-2 number, since 2×60627645721² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (60627645791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30313822860 + 30313822861.

It is an arithmetic number, because the mean of its divisors is an integer number (30313822861).

Almost surely, 2^60627645721 is an apocalyptic number.

It is an amenable number.

60627645721 is a deficient number, since it is larger than the sum of its proper divisors (1).

60627645721 is an equidigital number, since it uses as much as digits as its factorization.

60627645721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 60627645721 in words is "sixty billion, six hundred twenty-seven million, six hundred forty-five thousand, seven hundred twenty-one".