461611159826009 has 2 divisors, whose sum is σ = 461611159826010. Its totient is φ = 461611159826008.

The previous prime is 461611159825987. The next prime is 461611159826021. The reversal of 461611159826009 is 900628951116164.

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., 338312454865984 + 123298704960025 = 18393272^2 + 11103995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461611159826009 is a prime.

It is not a weakly prime, because it can be changed into another prime (461611159826029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230805579913004 + 230805579913005.

It is an arithmetic number, because the mean of its divisors is an integer number (230805579913005).

Almost surely, 2^{461611159826009} is an apocalyptic number.

It is an amenable number.

461611159826009 is a deficient number, since it is larger than the sum of its proper divisors (1).

461611159826009 is an equidigital number, since it uses as much as digits as its factorization.

461611159826009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 461611159826009 in words is "four hundred sixty-one trillion, six hundred eleven billion, one hundred fifty-nine million, eight hundred twenty-six thousand, nine".