17949712936 has 16 divisors (see below), whose sum is σ = 33662694240. Its totient is φ = 8972994480.

The previous prime is 17949712919. The next prime is 17949712987. The reversal of 17949712936 is 63921794971.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191346 + ... + 269281.

It is an arithmetic number, because the mean of its divisors is an integer number (2103918390).

Almost surely, 2^17949712936 is an apocalyptic number.

It is an amenable number.

17949712936 is a deficient number, since it is larger than the sum of its proper divisors (15712981304).

17949712936 is a wasteful number, since it uses less digits than its factorization.

17949712936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465504 (or 465500 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 58.

The spelling of 17949712936 in words is "seventeen billion, nine hundred forty-nine million, seven hundred twelve thousand, nine hundred thirty-six".