7006521851 has 16 divisors (see below), whose sum is σ = 8299908096. Its totient is φ = 5790064896.

The previous prime is 7006521839. The next prime is 7006521859. The reversal of 7006521851 is 1581256007.

It is not a de Polignac number, because 7006521851 - 2⁶ = 7006521787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7006521859) 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, 136886 + ... + 180971.

It is an arithmetic number, because the mean of its divisors is an integer number (518744256).

Almost surely, 2^7006521851 is an apocalyptic number.

7006521851 is a deficient number, since it is larger than the sum of its proper divisors (1293386245).

7006521851 is a wasteful number, since it uses less digits than its factorization.

7006521851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317978.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 7006521851 is about 83704.9690938358. The cubic root of 7006521851 is about 1913.5250865627.

Adding to 7006521851 its reverse (1581256007), we get a palindrome (8587777858).

The spelling of 7006521851 in words is "seven billion, six million, five hundred twenty-one thousand, eight hundred fifty-one".