68281143084 has 144 divisors (see below), whose sum is σ = 219581107200. Its totient is φ = 17735326560.

The previous prime is 68281143083. The next prime is 68281143097. The reversal of 68281143084 is 48034118286.

68281143084 is a `hidden beast` number, since 68 + 2 + 81 + 1 + 430 + 84 = 666.

It is not an unprimeable number, because it can be changed into a prime (68281143083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115524 + ... + 387179.

It is an arithmetic number, because the mean of its divisors is an integer number (1524868800).

Almost surely, 2^68281143084 is an apocalyptic number.

It is an amenable number.

68281143084 is an abundant number, since it is smaller than the sum of its proper divisors (151299964116).

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

68281143084 is a wasteful number, since it uses less digits than its factorization.

68281143084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502745 (or 502726 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 68281143084 in words is "sixty-eight billion, two hundred eighty-one million, one hundred forty-three thousand, eighty-four".