8678192386921 has 8 divisors (see below), whose sum is σ = 9190792064160. Its totient is φ = 8165828017728.

The previous prime is 8678192386873. The next prime is 8678192386933. The reversal of 8678192386921 is 1296832918768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8678192386921 - 2¹³ = 8678192378729 is a prime.

It is a super-2 number, since 2×8678192386921² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8678192386951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58751071 + ... + 58898596.

It is an arithmetic number, because the mean of its divisors is an integer number (1148849008020).

Almost surely, 2^{8678192386921} is an apocalyptic number.

It is an amenable number.

8678192386921 is a deficient number, since it is larger than the sum of its proper divisors (512599677239).

8678192386921 is a wasteful number, since it uses less digits than its factorization.

8678192386921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117654023.

The product of its digits is 125411328, while the sum is 70.

The spelling of 8678192386921 in words is "eight trillion, six hundred seventy-eight billion, one hundred ninety-two million, three hundred eighty-six thousand, nine hundred twenty-one".