409946353741 has 2 divisors, whose sum is σ = 409946353742. Its totient is φ = 409946353740.

The previous prime is 409946353717. The next prime is 409946353757. The reversal of 409946353741 is 147353649904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405151345225 + 4795008516 = 636515^2 + 69246^2 .

It is a cyclic number.

It is not a de Polignac number, because 409946353741 - 2³⁵ = 375586615373 is a prime.

It is a super-2 number, since 2×409946353741² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409946353711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204973176870 + 204973176871.

It is an arithmetic number, because the mean of its divisors is an integer number (204973176871).

Almost surely, 2^409946353741 is an apocalyptic number.

It is an amenable number.

409946353741 is a deficient number, since it is larger than the sum of its proper divisors (1).

409946353741 is an equidigital number, since it uses as much as digits as its factorization.

409946353741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 409946353741 in words is "four hundred nine billion, nine hundred forty-six million, three hundred fifty-three thousand, seven hundred forty-one".