405540113512 has 32 divisors (see below), whose sum is σ = 769611326400. Its totient is φ = 200310822784.

The previous prime is 405540113509. The next prime is 405540113513. The reversal of 405540113512 is 215311045504.

It is not an unprimeable number, because it can be changed into a prime (405540113513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15842868 + ... + 15868444.

It is an arithmetic number, because the mean of its divisors is an integer number (24050353950).

Almost surely, 2^405540113512 is an apocalyptic number.

It is an amenable number.

405540113512 is a deficient number, since it is larger than the sum of its proper divisors (364071212888).

405540113512 is a wasteful number, since it uses less digits than its factorization.

405540113512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49545 (or 49541 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 405540113512 in words is "four hundred five billion, five hundred forty million, one hundred thirteen thousand, five hundred twelve".