17929019912 has 8 divisors (see below), whose sum is σ = 33616912350. Its totient is φ = 8964509952.

The previous prime is 17929019891. The next prime is 17929019921. The reversal of 17929019912 is 21991092971.

It can be written as a sum of positive squares in only one way, i.e., 17385477316 + 543542596 = 131854^2 + 23314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120563737 + ... + 1120563752.

Almost surely, 2^17929019912 is an apocalyptic number.

It is an amenable number.

17929019912 is a deficient number, since it is larger than the sum of its proper divisors (15687892438).

17929019912 is a wasteful number, since it uses less digits than its factorization.

17929019912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241127495 (or 2241127491 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 50.

The spelling of 17929019912 in words is "seventeen billion, nine hundred twenty-nine million, nineteen thousand, nine hundred twelve".