461490361581841 has 2 divisors, whose sum is σ = 461490361581842. Its totient is φ = 461490361581840.

The previous prime is 461490361581721. The next prime is 461490361581883. The reversal of 461490361581841 is 148185163094164.

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., 393681312691216 + 67809048890625 = 19841404^2 + 8234625^2 .

It is a cyclic number.

It is not a de Polignac number, because 461490361581841 - 2¹³ = 461490361573649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461490361581841.

It is not a weakly prime, because it can be changed into another prime (461490361581541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230745180790920 + 230745180790921.

It is an arithmetic number, because the mean of its divisors is an integer number (230745180790921).

Almost surely, 2^{461490361581841} is an apocalyptic number.

It is an amenable number.

461490361581841 is a deficient number, since it is larger than the sum of its proper divisors (1).

461490361581841 is an equidigital number, since it uses as much as digits as its factorization.

461490361581841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 461490361581841 in words is "four hundred sixty-one trillion, four hundred ninety billion, three hundred sixty-one million, five hundred eighty-one thousand, eight hundred forty-one".