60531261449 has 2 divisors, whose sum is σ = 60531261450. Its totient is φ = 60531261448.

The previous prime is 60531261403. The next prime is 60531261467. The reversal of 60531261449 is 94416213506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53380867849 + 7150393600 = 231043^2 + 84560^2 .

It is a cyclic number.

It is not a de Polignac number, because 60531261449 - 2²⁸ = 60262825993 is a prime.

It is a super-2 number, since 2×60531261449² (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 (60531221449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30265630724 + 30265630725.

It is an arithmetic number, because the mean of its divisors is an integer number (30265630725).

Almost surely, 2^60531261449 is an apocalyptic number.

It is an amenable number.

60531261449 is a deficient number, since it is larger than the sum of its proper divisors (1).

60531261449 is an equidigital number, since it uses as much as digits as its factorization.

60531261449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 60531261449 in words is "sixty billion, five hundred thirty-one million, two hundred sixty-one thousand, four hundred forty-nine".