2109454698816 has 56 divisors (see below), whose sum is σ = 6201406179840. Its totient is φ = 703151565696.

The previous prime is 2109454698811. The next prime is 2109454698833. The reversal of 2109454698816 is 6188964549012.

2109454698816 is a `hidden beast` number, since 2 + 1 + 0 + 9 + 4 + 546 + 9 + 8 + 81 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109454698811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610372896 + ... + 610376351.

Almost surely, 2^{2109454698816} is an apocalyptic number.

It is an amenable number.

2109454698816 is an abundant number, since it is smaller than the sum of its proper divisors (4091951481024).

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

2109454698816 is a wasteful number, since it uses less digits than its factorization.

2109454698816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220749268 (or 1220749252 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 2109454698816 in words is "two trillion, one hundred nine billion, four hundred fifty-four million, six hundred ninety-eight thousand, eight hundred sixteen".