17378782612 has 12 divisors (see below), whose sum is σ = 31735168416. Its totient is φ = 8311591640.

The previous prime is 17378782601. The next prime is 17378782639. The reversal of 17378782612 is 21628787371.

It is a self number, because there is not a number n which added to its sum of digits gives 17378782612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94449814 + ... + 94449997.

It is an arithmetic number, because the mean of its divisors is an integer number (2644597368).

Almost surely, 2^17378782612 is an apocalyptic number.

It is an amenable number.

17378782612 is a deficient number, since it is larger than the sum of its proper divisors (14356385804).

17378782612 is a wasteful number, since it uses less digits than its factorization.

17378782612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188899838 (or 188899836 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The spelling of 17378782612 in words is "seventeen billion, three hundred seventy-eight million, seven hundred eighty-two thousand, six hundred twelve".