1985608396803 has 8 divisors (see below), whose sum is σ = 2762585595648. Its totient is φ = 1266185064584.

The previous prime is 1985608396789. The next prime is 1985608396853. The reversal of 1985608396803 is 3086938065891.

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 1985608396803 - 2⁴ = 1985608396787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1985608396853) 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, 14388466575 + ... + 14388466712.

It is an arithmetic number, because the mean of its divisors is an integer number (345323199456).

Almost surely, 2^{1985608396803} is an apocalyptic number.

1985608396803 is a deficient number, since it is larger than the sum of its proper divisors (776977198845).

1985608396803 is a wasteful number, since it uses less digits than its factorization.

1985608396803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28776933313.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 1985608396803 in words is "one trillion, nine hundred eighty-five billion, six hundred eight million, three hundred ninety-six thousand, eight hundred three".