1878068320128 has 768 divisors, whose sum is σ = 7375402944000. Its totient is φ = 442887782400.

The previous prime is 1878068320111. The next prime is 1878068320171. The reversal of 1878068320128 is 8210238608781.

1878068320128 is a `hidden beast` number, since 187 + 80 + 68 + 320 + 1 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70328923 + ... + 70355621.

It is an arithmetic number, because the mean of its divisors is an integer number (9603389250).

Almost surely, 2^{1878068320128} is an apocalyptic number.

1878068320128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878068320128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3687701472000).

1878068320128 is an abundant number, since it is smaller than the sum of its proper divisors (5497334623872).

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

1878068320128 is a wasteful number, since it uses less digits than its factorization.

1878068320128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26811 (or 26796 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 1878068320128 in words is "one trillion, eight hundred seventy-eight billion, sixty-eight million, three hundred twenty thousand, one hundred twenty-eight".