4544020455128 has 64 divisors (see below), whose sum is σ = 10656541509120. Its totient is φ = 1764704908800.

The previous prime is 4544020455127. The next prime is 4544020455131. The reversal of 4544020455128 is 8215540204454.

It is a super-2 number, since 2×4544020455128² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544020455127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11668001 + ... + 12051152.

It is an arithmetic number, because the mean of its divisors is an integer number (166508461080).

Almost surely, 2^{4544020455128} is an apocalyptic number.

It is an amenable number.

4544020455128 is an abundant number, since it is smaller than the sum of its proper divisors (6112521053992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4544020455128 is a wasteful number, since it uses less digits than its factorization.

4544020455128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23719488 (or 23719484 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 44.

The spelling of 4544020455128 in words is "four trillion, five hundred forty-four billion, twenty million, four hundred fifty-five thousand, one hundred twenty-eight".