2169451994112 has 792 divisors, whose sum is σ = 7343522169984. Its totient is φ = 638216257536.

The previous prime is 2169451994107. The next prime is 2169451994153. The reversal of 2169451994112 is 2114991549612.

2169451994112 is a `hidden beast` number, since 2 + 1 + 6 + 9 + 4 + 519 + 9 + 4 + 112 = 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 967208863 + ... + 967211105.

It is an arithmetic number, because the mean of its divisors is an integer number (9272123952).

Almost surely, 2^{2169451994112} 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 2169451994112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3671761084992).

2169451994112 is an abundant number, since it is smaller than the sum of its proper divisors (5174070175872).

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

2169451994112 is a wasteful number, since it uses less digits than its factorization.

2169451994112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2284 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The spelling of 2169451994112 in words is "two trillion, one hundred sixty-nine billion, four hundred fifty-one million, nine hundred ninety-four thousand, one hundred twelve".