8727121853 has 8 divisors (see below), whose sum is σ = 9261070200. Its totient is φ = 8195461120.

The previous prime is 8727121841. The next prime is 8727121903. The reversal of 8727121853 is 3581217278.

8727121853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2583383929 + 6143737924 = 50827^2 + 78382^2 .

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 8727121853 - 2¹² = 8727117757 is a prime.

It is a super-2 number, since 2×8727121853² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8727121253) by changing a digit.

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, 564038 + ... + 579303.

It is an arithmetic number, because the mean of its divisors is an integer number (1157633775).

Almost surely, 2^8727121853 is an apocalyptic number.

It is an amenable number.

8727121853 is a deficient number, since it is larger than the sum of its proper divisors (533948347).

8727121853 is a wasteful number, since it uses less digits than its factorization.

8727121853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143807.

The product of its digits is 188160, while the sum is 44.

The square root of 8727121853 is about 93419.0657895914. The cubic root of 8727121853 is about 2058.8451324470.

The spelling of 8727121853 in words is "eight billion, seven hundred twenty-seven million, one hundred twenty-one thousand, eight hundred fifty-three".