2194037121888 has 120 divisors (see below), whose sum is σ = 6469904282688. Its totient is φ = 729384673536.

The previous prime is 2194037121863. The next prime is 2194037121893. The reversal of 2194037121888 is 8881217304912.

2194037121888 is a `hidden beast` number, since 2 + 1 + 94 + 0 + 371 + 2 + 188 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 167856 + ... + 2101487.

Almost surely, 2^{2194037121888} 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 2194037121888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234952141344).

2194037121888 is an abundant number, since it is smaller than the sum of its proper divisors (4275867160800).

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

2194037121888 is a wasteful number, since it uses less digits than its factorization.

2194037121888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269738 (or 2269721 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 2194037121888 in words is "two trillion, one hundred ninety-four billion, thirty-seven million, one hundred twenty-one thousand, eight hundred eighty-eight".