7021827845 has 8 divisors (see below), whose sum is σ = 8426739960. Its totient is φ = 5617097920.

The previous prime is 7021827823. The next prime is 7021827859. The reversal of 7021827845 is 5487281207.

It can be written as a sum of positive squares in 4 ways, for example, as 5755201 + 7016072644 = 2399^2 + 83762^2 .

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

It is not a de Polignac number, because 7021827845 - 2²⁴ = 7005050629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7021827796 and 7021827805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62591 + ... + 134019.

It is an arithmetic number, because the mean of its divisors is an integer number (1053342495).

Almost surely, 2^7021827845 is an apocalyptic number.

It is an amenable number.

7021827845 is a deficient number, since it is larger than the sum of its proper divisors (1404912115).

7021827845 is a wasteful number, since it uses less digits than its factorization.

7021827845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91095.

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 7021827845 is about 83796.3474442651. The cubic root of 7021827845 is about 1914.9174608286.

The spelling of 7021827845 in words is "seven billion, twenty-one million, eight hundred twenty-seven thousand, eight hundred forty-five".