2109261580443 has 12 divisors (see below), whose sum is σ = 3046755460008. Its totient is φ = 1406153946240.

The previous prime is 2109261580397. The next prime is 2109261580471. The reversal of 2109261580443 is 3440851629012.

2109261580443 is a `hidden beast` number, since 2 + 1 + 0 + 9 + 2 + 61 + 580 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 2109261580443 - 2¹⁷ = 2109261449371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2109261588443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1036105 + ... + 2300442.

It is an arithmetic number, because the mean of its divisors is an integer number (253896288334).

Almost surely, 2^{2109261580443} is an apocalyptic number.

2109261580443 is a deficient number, since it is larger than the sum of its proper divisors (937493879565).

2109261580443 is a wasteful number, since it uses less digits than its factorization.

2109261580443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406794 (or 3406791 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 2109261580443 in words is "two trillion, one hundred nine billion, two hundred sixty-one million, five hundred eighty thousand, four hundred forty-three".