400050185143 has 4 divisors (see below), whose sum is σ = 457200211600. Its totient is φ = 342900158688.

The previous prime is 400050185141. The next prime is 400050185147. The reversal of 400050185143 is 341581050004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400050185143 - 2¹ = 400050185141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400050185141) 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, 28575013218 + ... + 28575013231.

It is an arithmetic number, because the mean of its divisors is an integer number (114300052900).

Almost surely, 2^400050185143 is an apocalyptic number.

400050185143 is a deficient number, since it is larger than the sum of its proper divisors (57150026457).

400050185143 is an equidigital number, since it uses as much as digits as its factorization.

400050185143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57150026456.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 400050185143 in words is "four hundred billion, fifty million, one hundred eighty-five thousand, one hundred forty-three".