400511324244543 has 16 divisors (see below), whose sum is σ = 536414466964320. Its totient is φ = 265809827385344.

The previous prime is 400511324244541. The next prime is 400511324244547. The reversal of 400511324244543 is 345442423115004.

It is a cyclic number.

It is not a de Polignac number, because 400511324244543 - 2¹ = 400511324244541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400511324244495 and 400511324244504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400511324244541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244417146 + ... + 246050327.

It is an arithmetic number, because the mean of its divisors is an integer number (33525904185270).

Almost surely, 2^{400511324244543} is an apocalyptic number.

400511324244543 is a deficient number, since it is larger than the sum of its proper divisors (135903142719777).

400511324244543 is a wasteful number, since it uses less digits than its factorization.

400511324244543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490468698.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 400511324244543 its reverse (345442423115004), we get a palindrome (745953747359547).

The spelling of 400511324244543 in words is "four hundred trillion, five hundred eleven billion, three hundred twenty-four million, two hundred forty-four thousand, five hundred forty-three".