4544521872061 has 32 divisors (see below), whose sum is σ = 4652969263488. Its totient is φ = 4437754352640.

The previous prime is 4544521872013. The next prime is 4544521872151. The reversal of 4544521872061 is 1602781254454.

It is a cyclic number.

It is not a de Polignac number, because 4544521872061 - 2⁷ = 4544521871933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4544521871996 and 4544521872014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544521852061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1864800535 + ... + 1864802971.

It is an arithmetic number, because the mean of its divisors is an integer number (145405289484).

Almost surely, 2^{4544521872061} is an apocalyptic number.

It is an amenable number.

4544521872061 is a deficient number, since it is larger than the sum of its proper divisors (108447391427).

4544521872061 is a wasteful number, since it uses less digits than its factorization.

4544521872061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 4544521872061 in words is "four trillion, five hundred forty-four billion, five hundred twenty-one million, eight hundred seventy-two thousand, sixty-one".