411940663648477 has 2 divisors, whose sum is σ = 411940663648478. Its totient is φ = 411940663648476.

The previous prime is 411940663648429. The next prime is 411940663648487. The reversal of 411940663648477 is 774846366049114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365033657069316 + 46907006579161 = 19105854^2 + 6848869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411940663648477 is a prime.

It is a super-2 number, since 2×411940663648477² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411940663648487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205970331824238 + 205970331824239.

It is an arithmetic number, because the mean of its divisors is an integer number (205970331824239).

Almost surely, 2^{411940663648477} is an apocalyptic number.

It is an amenable number.

411940663648477 is a deficient number, since it is larger than the sum of its proper divisors (1).

411940663648477 is an equidigital number, since it uses as much as digits as its factorization.

411940663648477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 585252864, while the sum is 70.

The spelling of 411940663648477 in words is "four hundred eleven trillion, nine hundred forty billion, six hundred sixty-three million, six hundred forty-eight thousand, four hundred seventy-seven".