2173032975081 has 4 divisors (see below), whose sum is σ = 2897377300112. Its totient is φ = 1448688650052.

The previous prime is 2173032975013. The next prime is 2173032975101. The reversal of 2173032975081 is 1805792303712.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2173032975081 - 2¹⁷ = 2173032844009 is a prime.

It is a super-2 number, since 2×2173032975081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2173032975081.

It is not an unprimeable number, because it can be changed into a prime (2173032975181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362172162511 + ... + 362172162516.

It is an arithmetic number, because the mean of its divisors is an integer number (724344325028).

Almost surely, 2^{2173032975081} is an apocalyptic number.

It is an amenable number.

2173032975081 is a deficient number, since it is larger than the sum of its proper divisors (724344325031).

2173032975081 is an equidigital number, since it uses as much as digits as its factorization.

2173032975081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724344325030.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 2173032975081 in words is "two trillion, one hundred seventy-three billion, thirty-two million, nine hundred seventy-five thousand, eighty-one".