44998453521 has 24 divisors (see below), whose sum is σ = 78192803520. Its totient is φ = 24360064416.

The previous prime is 44998453517. The next prime is 44998453529. The reversal of 44998453521 is 12535489944.

It is a happy number.

44998453521 is a `hidden beast` number, since 4 + 4 + 9 + 9 + 84 + 535 + 21 = 666.

44998453521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44998453521 - 2² = 44998453517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44998453529) 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, 18795150 + ... + 18797543.

It is an arithmetic number, because the mean of its divisors is an integer number (3258033480).

Almost surely, 2^44998453521 is an apocalyptic number.

It is an amenable number.

44998453521 is a deficient number, since it is larger than the sum of its proper divisors (33194349999).

44998453521 is a wasteful number, since it uses less digits than its factorization.

44998453521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37592725 (or 37592722 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 44998453521 in words is "forty-four billion, nine hundred ninety-eight million, four hundred fifty-three thousand, five hundred twenty-one".