409453840507 has 4 divisors (see below), whose sum is σ = 409468211200. Its totient is φ = 409439469816.

The previous prime is 409453840469. The next prime is 409453840513. The reversal of 409453840507 is 705048354904.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 409453840507 - 2³¹ = 407306356859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409453840567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7142523 + ... + 7199620.

It is an arithmetic number, because the mean of its divisors is an integer number (102367052800).

Almost surely, 2^409453840507 is an apocalyptic number.

409453840507 is a deficient number, since it is larger than the sum of its proper divisors (14370693).

409453840507 is a wasteful number, since it uses less digits than its factorization.

409453840507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14370692.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 409453840507 in words is "four hundred nine billion, four hundred fifty-three million, eight hundred forty thousand, five hundred seven".