450000409519 has 4 divisors (see below), whose sum is σ = 450024360696. Its totient is φ = 449976458344.

The previous prime is 450000409513. The next prime is 450000409549. The reversal of 450000409519 is 915904000054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 915904000054 = 2 ⋅457952000027.

It is a cyclic number.

It is not a de Polignac number, because 450000409519 - 2³ = 450000409511 is a prime.

It is a super-2 number, since 2×450000409519² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450000409511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11947384 + ... + 11984989.

It is an arithmetic number, because the mean of its divisors is an integer number (112506090174).

Almost surely, 2^450000409519 is an apocalyptic number.

450000409519 is a deficient number, since it is larger than the sum of its proper divisors (23951177).

450000409519 is a wasteful number, since it uses less digits than its factorization.

450000409519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23951176.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 450000409519 in words is "four hundred fifty billion, four hundred nine thousand, five hundred nineteen".