44651421545 has 16 divisors (see below), whose sum is σ = 54887656320. Its totient is φ = 34859343744.

The previous prime is 44651421533. The next prime is 44651421569. The reversal of 44651421545 is 54512415644.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44651421545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511997 + ... + 592826.

It is an arithmetic number, because the mean of its divisors is an integer number (3430478520).

Almost surely, 2^44651421545 is an apocalyptic number.

It is an amenable number.

44651421545 is a deficient number, since it is larger than the sum of its proper divisors (10236234775).

44651421545 is a wasteful number, since it uses less digits than its factorization.

44651421545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105024.

The product of its digits is 384000, while the sum is 41.

The spelling of 44651421545 in words is "forty-four billion, six hundred fifty-one million, four hundred twenty-one thousand, five hundred forty-five".