2181292579226 has 8 divisors (see below), whose sum is σ = 3272321890944. Its totient is φ = 1090518615580.

The previous prime is 2181292579187. The next prime is 2181292579307. The reversal of 2181292579226 is 6229752921812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63815660 + ... + 63849831.

It is an arithmetic number, because the mean of its divisors is an integer number (409040236368).

Almost surely, 2^{2181292579226} is an apocalyptic number.

2181292579226 is a deficient number, since it is larger than the sum of its proper divisors (1091029311718).

2181292579226 is a wasteful number, since it uses less digits than its factorization.

2181292579226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127674036.

The product of its digits is 4354560, while the sum is 56.

The spelling of 2181292579226 in words is "two trillion, one hundred eighty-one billion, two hundred ninety-two million, five hundred seventy-nine thousand, two hundred twenty-six".