44729991227520 has 320 divisors, whose sum is σ = 169135282661400. Its totient is φ = 11226350518272.

The previous prime is 44729991227491. The next prime is 44729991227521. The reversal of 44729991227520 is 2572219992744.

44729991227520 is a `hidden beast` number, since 4 + 4 + 7 + 2 + 9 + 99 + 12 + 2 + 7 + 520 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 39399322964544 + 5330668262976 = 6276888^2 + 2308824^2 .

It is a tau number, because it is divible by the number of its divisors (320).

It is not an unprimeable number, because it can be changed into a prime (44729991227521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24496575 + ... + 26259134.

Almost surely, 2^{44729991227520} is an apocalyptic number.

44729991227520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44729991227520 is an abundant number, since it is smaller than the sum of its proper divisors (124405291433880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44729991227520 is a wasteful number, since it uses less digits than its factorization.

44729991227520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50755757 (or 50755736 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 44729991227520 in words is "forty-four trillion, seven hundred twenty-nine billion, nine hundred ninety-one million, two hundred twenty-seven thousand, five hundred twenty".