44471972669 has 2 divisors, whose sum is σ = 44471972670. Its totient is φ = 44471972668.

The previous prime is 44471972663. The next prime is 44471972693. The reversal of 44471972669 is 96627917444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24973480900 + 19498491769 = 158030^2 + 139637^2 .

It is a cyclic number.

It is not a de Polignac number, because 44471972669 - 2¹⁶ = 44471907133 is a prime.

It is a super-2 number, since 2×44471972669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44471972663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22235986334 + 22235986335.

It is an arithmetic number, because the mean of its divisors is an integer number (22235986335).

Almost surely, 2^44471972669 is an apocalyptic number.

It is an amenable number.

44471972669 is a deficient number, since it is larger than the sum of its proper divisors (1).

44471972669 is an equidigital number, since it uses as much as digits as its factorization.

44471972669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 59.

The spelling of 44471972669 in words is "forty-four billion, four hundred seventy-one million, nine hundred seventy-two thousand, six hundred sixty-nine".