44665671949 has 2 divisors, whose sum is σ = 44665671950. Its totient is φ = 44665671948.

The previous prime is 44665671913. The next prime is 44665671961. The reversal of 44665671949 is 94917656644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42012700900 + 2652971049 = 204970^2 + 51507^2 .

It is a cyclic number.

It is not a de Polignac number, because 44665671949 - 2¹⁵ = 44665639181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44665671989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22332835974 + 22332835975.

It is an arithmetic number, because the mean of its divisors is an integer number (22332835975).

Almost surely, 2^44665671949 is an apocalyptic number.

It is an amenable number.

44665671949 is a deficient number, since it is larger than the sum of its proper divisors (1).

44665671949 is an equidigital number, since it uses as much as digits as its factorization.

44665671949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 61.

The spelling of 44665671949 in words is "forty-four billion, six hundred sixty-five million, six hundred seventy-one thousand, nine hundred forty-nine".