2172269195044 has 27 divisors (see below), whose sum is σ = 4116458473617. Its totient is φ = 1002568095984.

The previous prime is 2172269195021. The next prime is 2172269195099. The reversal of 2172269195044 is 4405919622712.

The square root of 2172269195044 is 1473862.

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., 321341596900 + 1850927598144 = 566870^2 + 1360488^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2172269194982 and 2172269195000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38292069 + ... + 38348755.

Almost surely, 2^{2172269195044} is an apocalyptic number.

2172269195044 is the 1473862-nd square number.

It is an amenable number.

2172269195044 is a deficient number, since it is larger than the sum of its proper divisors (1944189278573).

2172269195044 is an frugal number, since it uses more digits than its factorization.

2172269195044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113404 (or 56702 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 2172269195044 in words is "two trillion, one hundred seventy-two billion, two hundred sixty-nine million, one hundred ninety-five thousand, forty-four".