60539831609 has 2 divisors, whose sum is σ = 60539831610. Its totient is φ = 60539831608.

The previous prime is 60539831557. The next prime is 60539831647. The reversal of 60539831609 is 90613893506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59647315984 + 892515625 = 244228^2 + 29875^2 .

It is a cyclic number.

It is not a de Polignac number, because 60539831609 - 2¹⁶ = 60539766073 is a prime.

It is a super-2 number, since 2×60539831609² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (60539831509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30269915804 + 30269915805.

It is an arithmetic number, because the mean of its divisors is an integer number (30269915805).

Almost surely, 2^60539831609 is an apocalyptic number.

It is an amenable number.

60539831609 is a deficient number, since it is larger than the sum of its proper divisors (1).

60539831609 is an equidigital number, since it uses as much as digits as its factorization.

60539831609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The spelling of 60539831609 in words is "sixty billion, five hundred thirty-nine million, eight hundred thirty-one thousand, six hundred nine".