1985608396802 has 16 divisors (see below), whose sum is σ = 3042206173440. Its totient is φ = 971545548768.

The previous prime is 1985608396789. The next prime is 1985608396853. The reversal of 1985608396802 is 2086938065891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788027 + ... + 2142942.

It is an arithmetic number, because the mean of its divisors is an integer number (190137885840).

Almost surely, 2^{1985608396802} is an apocalyptic number.

1985608396802 is a deficient number, since it is larger than the sum of its proper divisors (1056597776638).

1985608396802 is a wasteful number, since it uses less digits than its factorization.

1985608396802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938225.

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 1985608396802 in words is "one trillion, nine hundred eighty-five billion, six hundred eight million, three hundred ninety-six thousand, eight hundred two".