44020647646481 has 32 divisors (see below), whose sum is σ = 49240685894400. Its totient is φ = 39005511552000.

The previous prime is 44020647646477. The next prime is 44020647646511. The reversal of 44020647646481 is 18464674602044.

It is a cyclic number.

It is not a de Polignac number, because 44020647646481 - 2² = 44020647646477 is a prime.

It is a super-2 number, since 2×44020647646481² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44020647640481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3944850380 + ... + 3944861538.

It is an arithmetic number, because the mean of its divisors is an integer number (1538771434200).

Almost surely, 2^{44020647646481} is an apocalyptic number.

44020647646481 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44020647646481 is a deficient number, since it is larger than the sum of its proper divisors (5220038247919).

44020647646481 is a wasteful number, since it uses less digits than its factorization.

44020647646481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18761.

The product of its (nonzero) digits is 24772608, while the sum is 56.

The spelling of 44020647646481 in words is "forty-four trillion, twenty billion, six hundred forty-seven million, six hundred forty-six thousand, four hundred eighty-one".