68030673128 has 24 divisors (see below), whose sum is σ = 140207845890. Its totient is φ = 30923032800.

The previous prime is 68030673107. The next prime is 68030673167. The reversal of 68030673128 is 82137603086.

It can be written as a sum of positive squares in only one way, i.e., 45906490564 + 22124182564 = 214258^2 + 148742^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35138843 + ... + 35140778.

Almost surely, 2^68030673128 is an apocalyptic number.

It is an amenable number.

68030673128 is an abundant number, since it is smaller than the sum of its proper divisors (72177172762).

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

68030673128 is a wasteful number, since it uses less digits than its factorization.

68030673128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70279649 (or 70279634 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 68030673128 in words is "sixty-eight billion, thirty million, six hundred seventy-three thousand, one hundred twenty-eight".