4475378329081 has 9 divisors (see below), whose sum is σ = 4919243080773. Its totient is φ = 4068504598620.

The previous prime is 4475378329067. The next prime is 4475378329133. The reversal of 4475378329081 is 1809238735744.

The square root of 4475378329081 is 2115509.

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

It is not a de Polignac number, because 4475378329081 - 2⁴¹ = 2276355073529 is a prime.

It is a super-2 number, since 2×4475378329081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4475378329061) 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 8 ways as a sum of consecutive naturals, for example, 23174440 + ... + 23366758.

Almost surely, 2^{4475378329081} is an apocalyptic number.

4475378329081 is the 2115509-th square number.

4475378329081 is the 1057755-th centered octagonal number.

It is an amenable number.

4475378329081 is a deficient number, since it is larger than the sum of its proper divisors (443864751692).

4475378329081 is an frugal number, since it uses more digits than its factorization.

4475378329081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384660 (or 192330 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

It can be divided in two parts, 44753783 and 29081, that added together give a square (44782864 = 6692²).

The spelling of 4475378329081 in words is "four trillion, four hundred seventy-five billion, three hundred seventy-eight million, three hundred twenty-nine thousand, eighty-one".