405511303913 has 4 divisors (see below), whose sum is σ = 405559341648. Its totient is φ = 405463266180.

The previous prime is 405511303909. The next prime is 405511303973. The reversal of 405511303913 is 319303115504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 405511303913 - 2² = 405511303909 is a prime.

It is a super-2 number, since 2×405511303913² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (405511303973) 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, 24006203 + ... + 24023088.

It is an arithmetic number, because the mean of its divisors is an integer number (101389835412).

Almost surely, 2^405511303913 is an apocalyptic number.

It is an amenable number.

405511303913 is a deficient number, since it is larger than the sum of its proper divisors (48037735).

405511303913 is an equidigital number, since it uses as much as digits as its factorization.

405511303913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48037734.

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 405511303913 in words is "four hundred five billion, five hundred eleven million, three hundred three thousand, nine hundred thirteen".