405458871497 has 2 divisors, whose sum is σ = 405458871498. Its totient is φ = 405458871496.

The previous prime is 405458871491. The next prime is 405458871553. The reversal of 405458871497 is 794178854504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248750565001 + 156708306496 = 498749^2 + 395864^2 .

It is a cyclic number.

It is not a de Polignac number, because 405458871497 - 2¹⁰ = 405458870473 is a prime.

It is not a weakly prime, because it can be changed into another prime (405458871491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202729435748 + 202729435749.

It is an arithmetic number, because the mean of its divisors is an integer number (202729435749).

Almost surely, 2^405458871497 is an apocalyptic number.

It is an amenable number.

405458871497 is a deficient number, since it is larger than the sum of its proper divisors (1).

405458871497 is an equidigital number, since it uses as much as digits as its factorization.

405458871497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45158400, while the sum is 62.

The spelling of 405458871497 in words is "four hundred five billion, four hundred fifty-eight million, eight hundred seventy-one thousand, four hundred ninety-seven".