10518717993 has 16 divisors (see below), whose sum is σ = 16092389376. Its totient is φ = 5986746000.

The previous prime is 10518717953. The next prime is 10518718031. The reversal of 10518717993 is 39971781501.

It is not a de Polignac number, because 10518717993 - 2¹⁶ = 10518652457 is a prime.

It is a super-2 number, since 2×10518717993² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10518717953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 992521 + ... + 1003062.

It is an arithmetic number, because the mean of its divisors is an integer number (1005774336).

Almost surely, 2^10518717993 is an apocalyptic number.

It is an amenable number.

10518717993 is a deficient number, since it is larger than the sum of its proper divisors (5573671383).

10518717993 is a wasteful number, since it uses less digits than its factorization.

10518717993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995844.

The product of its (nonzero) digits is 476280, while the sum is 51.

The spelling of 10518717993 in words is "ten billion, five hundred eighteen million, seven hundred seventeen thousand, nine hundred ninety-three".