68854554892 has 24 divisors (see below), whose sum is σ = 124233699744. Its totient is φ = 33366454272.

The previous prime is 68854554889. The next prime is 68854554893. The reversal of 68854554892 is 29845545886.

It is a super-2 number, since 2×68854554892² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68854554893) 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, 867088 + ... + 943159.

It is an arithmetic number, because the mean of its divisors is an integer number (5176404156).

Almost surely, 2^68854554892 is an apocalyptic number.

It is an amenable number.

68854554892 is a deficient number, since it is larger than the sum of its proper divisors (55379144852).

68854554892 is a wasteful number, since it uses less digits than its factorization.

68854554892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810545 (or 1810543 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 64.

The spelling of 68854554892 in words is "sixty-eight billion, eight hundred fifty-four million, five hundred fifty-four thousand, eight hundred ninety-two".