1078637640168 has 32 divisors (see below), whose sum is σ = 2941739019360. Its totient is φ = 326859890880.

The previous prime is 1078637640149. The next prime is 1078637640173. The reversal of 1078637640168 is 8610467368701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042874055 + ... + 2042874582.

It is an arithmetic number, because the mean of its divisors is an integer number (91929344355).

Almost surely, 2^{1078637640168} is an apocalyptic number.

It is an amenable number.

1078637640168 is an abundant number, since it is smaller than the sum of its proper divisors (1863101379192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1078637640168 is a wasteful number, since it uses less digits than its factorization.

1078637640168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085748657 (or 4085748653 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 1078637640168 in words is "one trillion, seventy-eight billion, six hundred thirty-seven million, six hundred forty thousand, one hundred sixty-eight".