10518717994 has 8 divisors (see below), whose sum is σ = 15781698180. Its totient is φ = 5258151936.

The previous prime is 10518717953. The next prime is 10518718031. The reversal of 10518717994 is 49971781501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10234357225 + 284360769 = 101165^2 + 16863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10518717994² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 592599 + ... + 610090.

Almost surely, 2^10518717994 is an apocalyptic number.

10518717994 is a deficient number, since it is larger than the sum of its proper divisors (5262980186).

10518717994 is a wasteful number, since it uses less digits than its factorization.

10518717994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207064.

The product of its (nonzero) digits is 635040, while the sum is 52.

The spelling of 10518717994 in words is "ten billion, five hundred eighteen million, seven hundred seventeen thousand, nine hundred ninety-four".