405342545144 has 8 divisors (see below), whose sum is σ = 760017272160. Its totient is φ = 202671272568.

The previous prime is 405342545129. The next prime is 405342545171. The reversal of 405342545144 is 441545243504.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25333909064 + ... + 25333909079.

It is an arithmetic number, because the mean of its divisors is an integer number (95002159020).

Almost surely, 2^405342545144 is an apocalyptic number.

It is an amenable number.

405342545144 is a deficient number, since it is larger than the sum of its proper divisors (354674727016).

405342545144 is a wasteful number, since it uses less digits than its factorization.

405342545144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50667818149 (or 50667818145 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 405342545144 its reverse (441545243504), we get a palindrome (846887788648).

The spelling of 405342545144 in words is "four hundred five billion, three hundred forty-two million, five hundred forty-five thousand, one hundred forty-four".