1985913314156 has 6 divisors (see below), whose sum is σ = 3475348299780. Its totient is φ = 992956657076.

The previous prime is 1985913314153. The next prime is 1985913314171. The reversal of 1985913314156 is 6514133195891.

It is not an unprimeable number, because it can be changed into a prime (1985913314153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248239164266 + ... + 248239164273.

It is an arithmetic number, because the mean of its divisors is an integer number (579224716630).

Almost surely, 2^{1985913314156} is an apocalyptic number.

It is an amenable number.

1985913314156 is a deficient number, since it is larger than the sum of its proper divisors (1489434985624).

1985913314156 is a wasteful number, since it uses less digits than its factorization.

1985913314156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496478328543 (or 496478328541 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 56.

The spelling of 1985913314156 in words is "one trillion, nine hundred eighty-five billion, nine hundred thirteen million, three hundred fourteen thousand, one hundred fifty-six".