17919979282 has 32 divisors (see below), whose sum is σ = 28197419904. Its totient is φ = 8525088000.

The previous prime is 17919979279. The next prime is 17919979291. The reversal of 17919979282 is 28297991971.

It is a happy number.

It is a super-2 number, since 2×17919979282² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14920282 + ... + 14921482.

It is an arithmetic number, because the mean of its divisors is an integer number (881169372).

Almost surely, 2^17919979282 is an apocalyptic number.

17919979282 is a deficient number, since it is larger than the sum of its proper divisors (10277440622).

17919979282 is a wasteful number, since it uses less digits than its factorization.

17919979282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674.

The product of its digits is 10287648, while the sum is 64.

The spelling of 17919979282 in words is "seventeen billion, nine hundred nineteen million, nine hundred seventy-nine thousand, two hundred eighty-two".