45444104511521 has 8 divisors (see below), whose sum is σ = 46212335596224. Its totient is φ = 44676623290320.

The previous prime is 45444104511473. The next prime is 45444104511563. The reversal of 45444104511521 is 12511540144454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45444104511521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45444104510521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187343645 + ... + 187586058.

It is an arithmetic number, because the mean of its divisors is an integer number (5776541949528).

Almost surely, 2^{45444104511521} is an apocalyptic number.

It is an amenable number.

45444104511521 is a deficient number, since it is larger than the sum of its proper divisors (768231084703).

45444104511521 is a wasteful number, since it uses less digits than its factorization.

45444104511521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374931751.

The product of its (nonzero) digits is 256000, while the sum is 41.

Adding to 45444104511521 its reverse (12511540144454), we get a palindrome (57955644655975).

The spelling of 45444104511521 in words is "forty-five trillion, four hundred forty-four billion, one hundred four million, five hundred eleven thousand, five hundred twenty-one".