7852086545 has 16 divisors (see below), whose sum is σ = 9762739920. Its totient is φ = 6055526400.

The previous prime is 7852086533. The next prime is 7852086551. The reversal of 7852086545 is 5456802587.

It is a Cunningham number, because it is equal to 88612²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 107910544 + 7744176001 = 10388^2 + 88001^2 .

It is not a de Polignac number, because 7852086545 - 2²⁰ = 7851037969 is a prime.

It is a super-2 number, since 2×7852086545² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7852086493 and 7852086502.

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 15 ways as a sum of consecutive naturals, for example, 50705 + ... + 135185.

It is an arithmetic number, because the mean of its divisors is an integer number (610171245).

Almost surely, 2^7852086545 is an apocalyptic number.

It is an amenable number.

7852086545 is a deficient number, since it is larger than the sum of its proper divisors (1910653375).

7852086545 is a wasteful number, since it uses less digits than its factorization.

7852086545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85156.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The square root of 7852086545 is about 88612.0000056426. Note that the first 5 decimals coincide. The cubic root of 7852086545 is about 1987.5971220553.

The spelling of 7852086545 in words is "seven billion, eight hundred fifty-two million, eighty-six thousand, five hundred forty-five".