405473374049 has 4 divisors (see below), whose sum is σ = 415362968580. Its totient is φ = 395583779520.

The previous prime is 405473374039. The next prime is 405473374063. The reversal of 405473374049 is 940473374504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99371213824 + 306102160225 = 315232^2 + 553265^2 .

It is a cyclic number.

It is not a de Polignac number, because 405473374049 - 2²⁰ = 405472325473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405473373988 and 405473374006.

It is not an unprimeable number, because it can be changed into a prime (405473374039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4944797204 + ... + 4944797285.

It is an arithmetic number, because the mean of its divisors is an integer number (103840742145).

Almost surely, 2^405473374049 is an apocalyptic number.

It is an amenable number.

405473374049 is a deficient number, since it is larger than the sum of its proper divisors (9889594531).

405473374049 is an equidigital number, since it uses as much as digits as its factorization.

405473374049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9889594530.

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 405473374049 in words is "four hundred five billion, four hundred seventy-three million, three hundred seventy-four thousand, forty-nine".