44961921329 has 16 divisors (see below), whose sum is σ = 49991961600. Its totient is φ = 40156879680.

The previous prime is 44961921247. The next prime is 44961921377. The reversal of 44961921329 is 92312916944.

It is a cyclic number.

It is not a de Polignac number, because 44961921329 - 2¹⁶ = 44961855793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44961911329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4027247 + ... + 4038395.

It is an arithmetic number, because the mean of its divisors is an integer number (3124497600).

Almost surely, 2^44961921329 is an apocalyptic number.

It is an amenable number.

44961921329 is a deficient number, since it is larger than the sum of its proper divisors (5030040271).

44961921329 is a wasteful number, since it uses less digits than its factorization.

44961921329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21200.

The product of its digits is 839808, while the sum is 50.

The spelling of 44961921329 in words is "forty-four billion, nine hundred sixty-one million, nine hundred twenty-one thousand, three hundred twenty-nine".