209100132672 has 56 divisors (see below), whose sum is σ = 553279860672. Its totient is φ = 69695539200.

The previous prime is 209100132653. The next prime is 209100132697. The reversal of 209100132672 is 276231001902.

It is a congruent number.

It is an unprimeable number.

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, 4384797 + ... + 4432227.

It is an arithmetic number, because the mean of its divisors is an integer number (9879997512).

Almost surely, 2^209100132672 is an apocalyptic number.

It is an amenable number.

209100132672 is an abundant number, since it is smaller than the sum of its proper divisors (344179728000).

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

209100132672 is a wasteful number, since it uses less digits than its factorization.

209100132672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70407 (or 70397 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 209100132672 in words is "two hundred nine billion, one hundred million, one hundred thirty-two thousand, six hundred seventy-two".