140005831405444 has 48 divisors (see below), whose sum is σ = 247116631507200. Its totient is φ = 69404494832000.

The previous prime is 140005831405439. The next prime is 140005831405457. The reversal of 140005831405444 is 444504138500041.

It is a self number, because there is not a number n which added to its sum of digits gives 140005831405444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173322894 + ... + 174128794.

It is an arithmetic number, because the mean of its divisors is an integer number (5148263156400).

Almost surely, 2^{140005831405444} is an apocalyptic number.

It is an amenable number.

140005831405444 is a deficient number, since it is larger than the sum of its proper divisors (107110800101756).

140005831405444 is a wasteful number, since it uses less digits than its factorization.

140005831405444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806964 (or 806962 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 43.

Adding to 140005831405444 its reverse (444504138500041), we get a palindrome (584509969905485).

The spelling of 140005831405444 in words is "one hundred forty trillion, five billion, eight hundred thirty-one million, four hundred five thousand, four hundred forty-four".