419531260657 has 2 divisors, whose sum is σ = 419531260658. Its totient is φ = 419531260656.

The previous prime is 419531260649. The next prime is 419531260699. The reversal of 419531260657 is 756062135914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226134487296 + 193396773361 = 475536^2 + 439769^2 .

It is a cyclic number.

It is not a de Polignac number, because 419531260657 - 2³ = 419531260649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 419531260657.

It is not a weakly prime, because it can be changed into another prime (419531260627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209765630328 + 209765630329.

It is an arithmetic number, because the mean of its divisors is an integer number (209765630329).

Almost surely, 2^419531260657 is an apocalyptic number.

It is an amenable number.

419531260657 is a deficient number, since it is larger than the sum of its proper divisors (1).

419531260657 is an equidigital number, since it uses as much as digits as its factorization.

419531260657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 49.

It can be divided in two parts, 4195312 and 60657, that added together give a square (4255969 = 2063²).

The spelling of 419531260657 in words is "four hundred nineteen billion, five hundred thirty-one million, two hundred sixty thousand, six hundred fifty-seven".