44147472769 has 3 divisors (see below), whose sum is σ = 44147682883. Its totient is φ = 44147262656.

The previous prime is 44147472767. The next prime is 44147472827. The reversal of 44147472769 is 96727474144.

The square root of 44147472769 is 210113.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 36593777025 + 7553695744 = 191295^2 + 86912^2 .

It is not a de Polignac number, because 44147472769 - 2¹ = 44147472767 is a prime.

It is a super-2 number, since 2×44147472769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44147472767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 105057 + ... + 315169.

Almost surely, 2^44147472769 is an apocalyptic number.

44147472769 is the 210113-rd square number.

44147472769 is the 105057-th centered octagonal number.

It is an amenable number.

44147472769 is a deficient number, since it is larger than the sum of its proper divisors (210114).

44147472769 is an frugal number, since it uses more digits than its factorization.

44147472769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420226 (or 210113 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 55.

The spelling of 44147472769 in words is "forty-four billion, one hundred forty-seven million, four hundred seventy-two thousand, seven hundred sixty-nine".