44512620169 has 2 divisors, whose sum is σ = 44512620170. Its totient is φ = 44512620168.

The previous prime is 44512620161. The next prime is 44512620179. The reversal of 44512620169 is 96102621544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29236896144 + 15275724025 = 170988^2 + 123595^2 .

It is a cyclic number.

It is not a de Polignac number, because 44512620169 - 2³ = 44512620161 is a prime.

It is a super-2 number, since 2×44512620169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44512620161) 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 as a sum of consecutive naturals, namely, 22256310084 + 22256310085.

It is an arithmetic number, because the mean of its divisors is an integer number (22256310085).

Almost surely, 2^44512620169 is an apocalyptic number.

It is an amenable number.

44512620169 is a deficient number, since it is larger than the sum of its proper divisors (1).

44512620169 is an equidigital number, since it uses as much as digits as its factorization.

44512620169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 44512620169 in words is "forty-four billion, five hundred twelve million, six hundred twenty thousand, one hundred sixty-nine".