400515044513 has 8 divisors (see below), whose sum is σ = 400733009280. Its totient is φ = 400297146480.

The previous prime is 400515044509. The next prime is 400515044563. The reversal of 400515044513 is 315440515004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400515044513 - 2² = 400515044509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400515044513.

It is not an unprimeable number, because it can be changed into a prime (400515044563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15748778 + ... + 15774188.

It is an arithmetic number, because the mean of its divisors is an integer number (50091626160).

Almost surely, 2^400515044513 is an apocalyptic number.

It is an amenable number.

400515044513 is a deficient number, since it is larger than the sum of its proper divisors (217964767).

400515044513 is a wasteful number, since it uses less digits than its factorization.

400515044513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33367.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 400515044513 its reverse (315440515004), we get a palindrome (715955559517).

The spelling of 400515044513 in words is "four hundred billion, five hundred fifteen million, forty-four thousand, five hundred thirteen".