44672626881 has 27 divisors (see below), whose sum is σ = 65973267841. Its totient is φ = 29128651944.

The previous prime is 44672626879. The next prime is 44672626897. The reversal of 44672626881 is 18862627644.

It is a happy number.

The square root of 44672626881 is 211359.

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

44672626881 is a `hidden beast` number, since 4 + 4 + 6 + 7 + 2 + 626 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 44672626881 - 2¹ = 44672626879 is a prime.

It is a super-2 number, since 2×44672626881² (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 (44672626811) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29800870 + ... + 29802368.

Almost surely, 2^44672626881 is an apocalyptic number.

44672626881 is the 211359-th square number.

44672626881 is the 105680-th centered octagonal number.

It is an amenable number.

44672626881 is a deficient number, since it is larger than the sum of its proper divisors (21300640960).

44672626881 is an frugal number, since it uses more digits than its factorization.

44672626881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098 (or 1549 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 44672626881 in words is "forty-four billion, six hundred seventy-two million, six hundred twenty-six thousand, eight hundred eighty-one".