2109158819532 has 72 divisors (see below), whose sum is σ = 5585946898896. Its totient is φ = 695804940288.

The previous prime is 2109158819497. The next prime is 2109158819557. The reversal of 2109158819532 is 2359188519012.

2109158819532 is a `hidden beast` number, since 2 + 1 + 0 + 9 + 1 + 588 + 1 + 9 + 53 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11090853 + ... + 11279420.

It is an arithmetic number, because the mean of its divisors is an integer number (77582595818).

Almost surely, 2^{2109158819532} is an apocalyptic number.

It is an amenable number.

2109158819532 is an abundant number, since it is smaller than the sum of its proper divisors (3476788079364).

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

2109158819532 is a wasteful number, since it uses less digits than its factorization.

2109158819532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22370389 (or 22370375 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 54.

The spelling of 2109158819532 in words is "two trillion, one hundred nine billion, one hundred fifty-eight million, eight hundred nineteen thousand, five hundred thirty-two".