68873818546 has 16 divisors (see below), whose sum is σ = 111267430848. Its totient is φ = 31785138000.

The previous prime is 68873818543. The next prime is 68873818549. The reversal of 68873818546 is 64581837886.

It is an interprime number because it is at equal distance from previous prime (68873818543) and next prime (68873818549).

It is a super-2 number, since 2×68873818546² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68873818543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204121 + ... + 423571.

It is an arithmetic number, because the mean of its divisors is an integer number (6954214428).

Almost surely, 2^68873818546 is an apocalyptic number.

68873818546 is a deficient number, since it is larger than the sum of its proper divisors (42393612302).

68873818546 is a wasteful number, since it uses less digits than its factorization.

68873818546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231537.

The product of its digits is 61931520, while the sum is 64.

The spelling of 68873818546 in words is "sixty-eight billion, eight hundred seventy-three million, eight hundred eighteen thousand, five hundred forty-six".