4003985444943 has 8 divisors (see below), whose sum is σ = 5823978829056. Its totient is φ = 2426657845400.

The previous prime is 4003985444941. The next prime is 4003985444957. The reversal of 4003985444943 is 3494445893004.

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 4003985444943 - 2¹ = 4003985444941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003985444941) 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, 60666446103 + ... + 60666446168.

It is an arithmetic number, because the mean of its divisors is an integer number (727997353632).

Almost surely, 2^{4003985444943} is an apocalyptic number.

4003985444943 is a deficient number, since it is larger than the sum of its proper divisors (1819993384113).

4003985444943 is a wasteful number, since it uses less digits than its factorization.

4003985444943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121332892285.

The product of its (nonzero) digits is 29859840, while the sum is 57.

The spelling of 4003985444943 in words is "four trillion, three billion, nine hundred eighty-five million, four hundred forty-four thousand, nine hundred forty-three".