4542929821 has 8 divisors (see below), whose sum is σ = 4630013784. Its totient is φ = 4455896640.

The previous prime is 4542929777. The next prime is 4542929851. The reversal of 4542929821 is 1289292454.

4542929821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1547556921 + 2995372900 = 39339^2 + 54730^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4542929821 - 2¹¹ = 4542927773 is a prime.

It is a super-2 number, since 2×4542929821² = 41276422717062184082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542929851) 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 7 ways as a sum of consecutive naturals, for example, 202455 + ... + 223771.

It is an arithmetic number, because the mean of its divisors is an integer number (578751723).

Almost surely, 2^4542929821 is an apocalyptic number.

It is an amenable number.

4542929821 is a deficient number, since it is larger than the sum of its proper divisors (87083963).

4542929821 is a wasteful number, since it uses less digits than its factorization.

4542929821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25391.

The product of its digits is 414720, while the sum is 46.

The square root of 4542929821 is about 67401.2597879298. The cubic root of 4542929821 is about 1656.1970597418.

The spelling of 4542929821 in words is "four billion, five hundred forty-two million, nine hundred twenty-nine thousand, eight hundred twenty-one".