120449961761 has 2 divisors, whose sum is σ = 120449961762. Its totient is φ = 120449961760.

The previous prime is 120449961713. The next prime is 120449961781. The reversal of 120449961761 is 167169944021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106426665361 + 14023296400 = 326231^2 + 118420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120449961761 is a prime.

It is a super-2 number, since 2×120449961761² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120449961781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60224980880 + 60224980881.

It is an arithmetic number, because the mean of its divisors is an integer number (60224980881).

Almost surely, 2^120449961761 is an apocalyptic number.

It is an amenable number.

120449961761 is a deficient number, since it is larger than the sum of its proper divisors (1).

120449961761 is an equidigital number, since it uses as much as digits as its factorization.

120449961761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 120449961761 in words is "one hundred twenty billion, four hundred forty-nine million, nine hundred sixty-one thousand, seven hundred sixty-one".