7018084021 has 8 divisors (see below), whose sum is σ = 7742277144. Its totient is φ = 6320225280.

The previous prime is 7018083959. The next prime is 7018084027. The reversal of 7018084021 is 1204808107.

It can be written as a sum of positive squares in 4 ways, for example, as 410670225 + 6607413796 = 20265^2 + 81286^2 .

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 7018084021 - 2²¹ = 7015986869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7018084027) 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, 6583036 + ... + 6584101.

It is an arithmetic number, because the mean of its divisors is an integer number (967784643).

Almost surely, 2^7018084021 is an apocalyptic number.

It is an amenable number.

7018084021 is a deficient number, since it is larger than the sum of its proper divisors (724193123).

7018084021 is a wasteful number, since it uses less digits than its factorization.

7018084021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167191.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 7018084021 is about 83774.0056401746. The cubic root of 7018084021 is about 1914.5770751721.

The spelling of 7018084021 in words is "seven billion, eighteen million, eighty-four thousand, twenty-one".