400234451204543 has 8 divisors (see below), whose sum is σ = 400723046169600. Its totient is φ = 399745883758968.

The previous prime is 400234451204519. The next prime is 400234451204633. The reversal of 400234451204543 is 345402154432004.

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 400234451204543 - 2⁴² = 395836404693439 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 400234451204543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400234451204743) 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, 22300730 + ... + 36024872.

It is an arithmetic number, because the mean of its divisors is an integer number (50090380771200).

Almost surely, 2^{400234451204543} is an apocalyptic number.

400234451204543 is a deficient number, since it is larger than the sum of its proper divisors (488594965057).

400234451204543 is a wasteful number, since it uses less digits than its factorization.

400234451204543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759741.

The product of its (nonzero) digits is 921600, while the sum is 41.

The spelling of 400234451204543 in words is "four hundred trillion, two hundred thirty-four billion, four hundred fifty-one million, two hundred four thousand, five hundred forty-three".