489377539121 has 2 divisors, whose sum is σ = 489377539122. Its totient is φ = 489377539120.

The previous prime is 489377539103. The next prime is 489377539141. The reversal of 489377539121 is 121935773984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411793007521 + 77584531600 = 641711^2 + 278540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489377539121 is a prime.

It is a super-2 number, since 2×489377539121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (489377539141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244688769560 + 244688769561.

It is an arithmetic number, because the mean of its divisors is an integer number (244688769561).

Almost surely, 2^489377539121 is an apocalyptic number.

It is an amenable number.

489377539121 is a deficient number, since it is larger than the sum of its proper divisors (1).

489377539121 is an equidigital number, since it uses as much as digits as its factorization.

489377539121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 59.

The spelling of 489377539121 in words is "four hundred eighty-nine billion, three hundred seventy-seven million, five hundred thirty-nine thousand, one hundred twenty-one".