489157042097 has 2 divisors, whose sum is σ = 489157042098. Its totient is φ = 489157042096.

The previous prime is 489157042081. The next prime is 489157042103. The reversal of 489157042097 is 790240751984.

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., 390480013456 + 98677028641 = 624884^2 + 314129^2 .

It is a cyclic number.

It is not a de Polignac number, because 489157042097 - 2⁴ = 489157042081 is a prime.

It is a super-2 number, since 2×489157042097² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (489157042007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244578521048 + 244578521049.

It is an arithmetic number, because the mean of its divisors is an integer number (244578521049).

Almost surely, 2^489157042097 is an apocalyptic number.

It is an amenable number.

489157042097 is a deficient number, since it is larger than the sum of its proper divisors (1).

489157042097 is an equidigital number, since it uses as much as digits as its factorization.

489157042097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 489157042097 in words is "four hundred eighty-nine billion, one hundred fifty-seven million, forty-two thousand, ninety-seven".