17929702468 has 12 divisors (see below), whose sum is σ = 31377976812. Its totient is φ = 8964566240.

The previous prime is 17929702411. The next prime is 17929702471. The reversal of 17929702468 is 86420792971.

It can be written as a sum of positive squares in 2 ways, for example, as 4272975424 + 13656727044 = 65368^2 + 116862^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139698 + ... + 235318.

It is an arithmetic number, because the mean of its divisors is an integer number (2614831401).

Almost surely, 2^17929702468 is an apocalyptic number.

It is an amenable number.

17929702468 is a deficient number, since it is larger than the sum of its proper divisors (13448274344).

17929702468 is a wasteful number, since it uses less digits than its factorization.

17929702468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142502 (or 142500 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 17929702468 in words is "seventeen billion, nine hundred twenty-nine million, seven hundred two thousand, four hundred sixty-eight".