60867775649 has 2 divisors, whose sum is σ = 60867775650. Its totient is φ = 60867775648.

The previous prime is 60867775643. The next prime is 60867775673. The reversal of 60867775649 is 94657776806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38599675024 + 22268100625 = 196468^2 + 149225^2 .

It is a cyclic number.

It is not a de Polignac number, because 60867775649 - 2⁸ = 60867775393 is a prime.

It is a super-2 number, since 2×60867775649² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (60867775643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30433887824 + 30433887825.

It is an arithmetic number, because the mean of its divisors is an integer number (30433887825).

Almost surely, 2^60867775649 is an apocalyptic number.

It is an amenable number.

60867775649 is a deficient number, since it is larger than the sum of its proper divisors (1).

60867775649 is an equidigital number, since it uses as much as digits as its factorization.

60867775649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 106686720, while the sum is 65.

The spelling of 60867775649 in words is "sixty billion, eight hundred sixty-seven million, seven hundred seventy-five thousand, six hundred forty-nine".