4515451542021 has 16 divisors (see below), whose sum is σ = 6891422387328. Its totient is φ = 2576232652800.

The previous prime is 4515451541989. The next prime is 4515451542131. The reversal of 4515451542021 is 1202451545154.

It is not a de Polignac number, because 4515451542021 - 2⁵ = 4515451541989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4515451540021) 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 15 ways as a sum of consecutive naturals, for example, 167710020 + ... + 167736941.

It is an arithmetic number, because the mean of its divisors is an integer number (430713899208).

Almost surely, 2^{4515451542021} is an apocalyptic number.

It is an amenable number.

4515451542021 is a deficient number, since it is larger than the sum of its proper divisors (2375970845307).

4515451542021 is a wasteful number, since it uses less digits than its factorization.

4515451542021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335447612.

The product of its (nonzero) digits is 160000, while the sum is 39.

The spelling of 4515451542021 in words is "four trillion, five hundred fifteen billion, four hundred fifty-one million, five hundred forty-two thousand, twenty-one".