68479435884 has 48 divisors (see below), whose sum is σ = 171368628480. Its totient is φ = 21217060800.

The previous prime is 68479435879. The next prime is 68479435919. The reversal of 68479435884 is 48853497486.

It is a happy number.

It is a super-2 number, since 2×68479435884² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2821392 + ... + 2845559.

It is an arithmetic number, because the mean of its divisors is an integer number (3570179760).

Almost surely, 2^68479435884 is an apocalyptic number.

It is an amenable number.

68479435884 is an abundant number, since it is smaller than the sum of its proper divisors (102889192596).

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

68479435884 is a wasteful number, since it uses less digits than its factorization.

68479435884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5667030 (or 5667028 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 66.

The spelling of 68479435884 in words is "sixty-eight billion, four hundred seventy-nine million, four hundred thirty-five thousand, eight hundred eighty-four".