44539540965 has 24 divisors (see below), whose sum is σ = 77327859960. Its totient is φ = 23715656064.

The previous prime is 44539540957. The next prime is 44539540967. The reversal of 44539540965 is 56904593544.

44539540965 is a `hidden beast` number, since 4 + 4 + 5 + 3 + 9 + 540 + 96 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7780298436 + 36759242529 = 88206^2 + 191727^2 .

It is not a de Polignac number, because 44539540965 - 2³ = 44539540957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44539540967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779730 + ... + 834899.

It is an arithmetic number, because the mean of its divisors is an integer number (3221994165).

Almost surely, 2^44539540965 is an apocalyptic number.

44539540965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44539540965 is a deficient number, since it is larger than the sum of its proper divisors (32788318995).

44539540965 is a wasteful number, since it uses less digits than its factorization.

44539540965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615253 (or 1615250 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 54.

The spelling of 44539540965 in words is "forty-four billion, five hundred thirty-nine million, five hundred forty thousand, nine hundred sixty-five".