8157200885 has 8 divisors (see below), whose sum is σ = 9789264600. Its totient is φ = 6525345024.

The previous prime is 8157200873. The next prime is 8157200917. The reversal of 8157200885 is 5880027518.

It can be written as a sum of positive squares in 4 ways, for example, as 354305329 + 7802895556 = 18823^2 + 88334^2 .

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 8157200885 - 2⁸ = 8157200629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54041 + ... + 138689.

It is an arithmetic number, because the mean of its divisors is an integer number (1223658075).

Almost surely, 2^8157200885 is an apocalyptic number.

It is an amenable number.

8157200885 is a deficient number, since it is larger than the sum of its proper divisors (1632063715).

8157200885 is a wasteful number, since it uses less digits than its factorization.

8157200885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103927.

The product of its (nonzero) digits is 179200, while the sum is 44.

The square root of 8157200885 is about 90317.2236342548. The cubic root of 8157200885 is about 2013.0151924073.

The spelling of 8157200885 in words is "eight billion, one hundred fifty-seven million, two hundred thousand, eight hundred eighty-five".