489701872061 has 2 divisors, whose sum is σ = 489701872062. Its totient is φ = 489701872060.

The previous prime is 489701872031. The next prime is 489701872067. The reversal of 489701872061 is 160278107984.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276344719225 + 213357152836 = 525685^2 + 461906^2 .

It is a cyclic number.

It is not a de Polignac number, because 489701872061 - 2¹⁰ = 489701871037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489701871994 and 489701872012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489701872067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244850936030 + 244850936031.

It is an arithmetic number, because the mean of its divisors is an integer number (244850936031).

Almost surely, 2^489701872061 is an apocalyptic number.

It is an amenable number.

489701872061 is a deficient number, since it is larger than the sum of its proper divisors (1).

489701872061 is an equidigital number, since it uses as much as digits as its factorization.

489701872061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 489701872061 in words is "four hundred eighty-nine billion, seven hundred one million, eight hundred seventy-two thousand, sixty-one".