1993018713 has 16 divisors (see below), whose sum is σ = 3040751616. Its totient is φ = 1137453840.

The previous prime is 1993018697. The next prime is 1993018717. The reversal of 1993018713 is 3178103991.

It is not a de Polignac number, because 1993018713 - 2⁴ = 1993018697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1993018717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41481 + ... + 75542.

It is an arithmetic number, because the mean of its divisors is an integer number (190046976).

Almost surely, 2^1993018713 is an apocalyptic number.

It is an amenable number.

1993018713 is a deficient number, since it is larger than the sum of its proper divisors (1047732903).

1993018713 is a wasteful number, since it uses less digits than its factorization.

1993018713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117844.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1993018713 is about 44643.2381554027. The cubic root of 1993018713 is about 1258.4533624355.

The spelling of 1993018713 in words is "one billion, nine hundred ninety-three million, eighteen thousand, seven hundred thirteen".