1000894981888 has 36 divisors (see below), whose sum is σ = 1997944121880. Its totient is φ = 500431483904.

The previous prime is 1000894981873. The next prime is 1000894981901. The reversal of 1000894981888 is 8881894980001.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 15958206 + ... + 16020802.

It is an arithmetic number, because the mean of its divisors is an integer number (55498447830).

Almost surely, 2^{1000894981888} is an apocalyptic number.

It is an amenable number.

1000894981888 is a deficient number, since it is larger than the sum of its proper divisors (997049139992).

1000894981888 is an frugal number, since it uses more digits than its factorization.

1000894981888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125072 (or 125058 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 64.

The spelling of 1000894981888 in words is "one trillion, eight hundred ninety-four million, nine hundred eighty-one thousand, eight hundred eighty-eight".