405140534400001 has 4 divisors (see below), whose sum is σ = 416090278573012. Its totient is φ = 394190790226992.

The previous prime is 405140534399977. The next prime is 405140534400013. The reversal of 405140534400001 is 100004435041504.

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 318134453832976 + 87006080567025 = 17836324^2 + 9327705^2 .

It is a cyclic number.

It is not a de Polignac number, because 405140534400001 - 2²⁵ = 405140500845569 is a prime.

It is a super-2 number, since 2×405140534400001² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405140534400071) 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, 5474872086450 + ... + 5474872086523.

It is an arithmetic number, because the mean of its divisors is an integer number (104022569643253).

Almost surely, 2^{405140534400001} is an apocalyptic number.

It is an amenable number.

405140534400001 is a deficient number, since it is larger than the sum of its proper divisors (10949744173011).

405140534400001 is a wasteful number, since it uses less digits than its factorization.

405140534400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10949744173010.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 405140534400001 its reverse (100004435041504), we get a palindrome (505144969441505).

The spelling of 405140534400001 in words is "four hundred five trillion, one hundred forty billion, five hundred thirty-four million, four hundred thousand, one".