7121854820068 has 24 divisors (see below), whose sum is σ = 12985768555200. Its totient is φ = 3413402004768.

The previous prime is 7121854820033. The next prime is 7121854820071. The reversal of 7121854820068 is 8600284581217.

It is a super-3 number, since 3×7121854820068³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7121854819997 and 7121854820024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220830280 + ... + 220862527.

It is an arithmetic number, because the mean of its divisors is an integer number (541073689800).

Almost surely, 2^{7121854820068} is an apocalyptic number.

It is an amenable number.

7121854820068 is a deficient number, since it is larger than the sum of its proper divisors (5863913735132).

7121854820068 is a wasteful number, since it uses less digits than its factorization.

7121854820068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441692979 (or 441692977 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 7121854820068 in words is "seven trillion, one hundred twenty-one billion, eight hundred fifty-four million, eight hundred twenty thousand, sixty-eight".