1889375578412 has 12 divisors (see below), whose sum is σ = 3778751156880. Its totient is φ = 809732390736.

The previous prime is 1889375578411. The next prime is 1889375578429. The reversal of 1889375578412 is 2148755739881.

1889375578412 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1889375578411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33738849587 + ... + 33738849642.

It is an arithmetic number, because the mean of its divisors is an integer number (314895929740).

Almost surely, 2^{1889375578412} is an apocalyptic number.

It is an amenable number.

1889375578412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1889375578412 is a wasteful number, since it uses less digits than its factorization.

1889375578412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67477699240 (or 67477699238 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 68.

The spelling of 1889375578412 in words is "one trillion, eight hundred eighty-nine billion, three hundred seventy-five million, five hundred seventy-eight thousand, four hundred twelve".