2173188982276 has 135 divisors (see below), whose sum is σ = 4328747520405. Its totient is φ = 954203346720.

The previous prime is 2173188982273. The next prime is 2173188982331. The reversal of 2173188982276 is 6722898813712.

The square root of 2173188982276 is 1474174.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 321477660100 + 1851711322176 = 566990^2 + 1360776^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173188982273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 36833711535 + ... + 36833711593.

Almost surely, 2^{2173188982276} is an apocalyptic number.

2173188982276 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2173188982276 is the 1474174-th square number.

It is an amenable number.

2173188982276 is a deficient number, since it is larger than the sum of its proper divisors (2155558538129).

2173188982276 is an frugal number, since it uses more digits than its factorization.

2173188982276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 105 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 64.

Multiplying 2173188982276 by its sum of digits (64), we get a square (139084094865664 = 11793392²).

The spelling of 2173188982276 in words is "two trillion, one hundred seventy-three billion, one hundred eighty-eight million, nine hundred eighty-two thousand, two hundred seventy-six".