411764923561 has 2 divisors, whose sum is σ = 411764923562. Its totient is φ = 411764923560.

The previous prime is 411764923523. The next prime is 411764923567. The reversal of 411764923561 is 165329467114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252129515625 + 159635407936 = 502125^2 + 399544^2 .

It is a cyclic number.

It is not a de Polignac number, because 411764923561 - 2¹⁷ = 411764792489 is a prime.

It is not a weakly prime, because it can be changed into another prime (411764923567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205882461780 + 205882461781.

It is an arithmetic number, because the mean of its divisors is an integer number (205882461781).

Almost surely, 2^411764923561 is an apocalyptic number.

It is an amenable number.

411764923561 is a deficient number, since it is larger than the sum of its proper divisors (1).

411764923561 is an equidigital number, since it uses as much as digits as its factorization.

411764923561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 411764923561 in words is "four hundred eleven billion, seven hundred sixty-four million, nine hundred twenty-three thousand, five hundred sixty-one".