90461804941 has 2 divisors, whose sum is σ = 90461804942. Its totient is φ = 90461804940.

The previous prime is 90461804893. The next prime is 90461804947. The reversal of 90461804941 is 14940816409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89829081225 + 632723716 = 299715^2 + 25154^2 .

It is an emirp because it is prime and its reverse (14940816409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90461804941 - 2⁹ = 90461804429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90461804891 and 90461804900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90461804947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45230902470 + 45230902471.

It is an arithmetic number, because the mean of its divisors is an integer number (45230902471).

Almost surely, 2^90461804941 is an apocalyptic number.

It is an amenable number.

90461804941 is a deficient number, since it is larger than the sum of its proper divisors (1).

90461804941 is an equidigital number, since it uses as much as digits as its factorization.

90461804941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 90461804941 in words is "ninety billion, four hundred sixty-one million, eight hundred four thousand, nine hundred forty-one".