244669718881 has 9 divisors (see below), whose sum is σ = 284619823281. Its totient is φ = 209713934052.

The previous prime is 244669718827. The next prime is 244669718899. The reversal of 244669718881 is 188817966442.

The square root of 244669718881 is 494641.

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

It is not a de Polignac number, because 244669718881 - 2¹⁹ = 244669194593 is a prime.

It is a super-2 number, since 2×244669718881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244669710881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3427156 + ... + 3497818.

It is an arithmetic number, because the mean of its divisors is an integer number (31624424809).

Almost surely, 2^244669718881 is an apocalyptic number.

244669718881 is the 494641-st square number.

244669718881 is the 247321-st centered octagonal number.

It is an amenable number.

244669718881 is a deficient number, since it is larger than the sum of its proper divisors (39950104400).

244669718881 is an frugal number, since it uses more digits than its factorization.

244669718881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141340 (or 70670 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 64.

Multiplying 244669718881 by its sum of digits (64), we get a square (15658862008384 = 3957128²).

The spelling of 244669718881 in words is "two hundred forty-four billion, six hundred sixty-nine million, seven hundred eighteen thousand, eight hundred eighty-one".