2115989194752 has 384 divisors, whose sum is σ = 6376249152000. Its totient is φ = 701909286912.

The previous prime is 2115989194621. The next prime is 2115989194777. The reversal of 2115989194752 is 2574919895112.

2115989194752 is a `hidden beast` number, since 2 + 1 + 159 + 8 + 9 + 1 + 9 + 475 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 2115989194752.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025684473 + ... + 1025686535.

It is an arithmetic number, because the mean of its divisors is an integer number (16604815500).

Almost surely, 2^{2115989194752} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115989194752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3188124576000).

2115989194752 is an abundant number, since it is smaller than the sum of its proper divisors (4260259957248).

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

2115989194752 is an frugal number, since it uses more digits than its factorization.

2115989194752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335 (or 2297 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 63.

The spelling of 2115989194752 in words is "two trillion, one hundred fifteen billion, nine hundred eighty-nine million, one hundred ninety-four thousand, seven hundred fifty-two".