7188157089 has 27 divisors (see below), whose sum is σ = 10583953393. Its totient is φ = 4701047784.

The previous prime is 7188157061. The next prime is 7188157169. The reversal of 7188157089 is 9807518817.

The square root of 7188157089 is 84783.

It is a perfect power (a square), and thus also a powerful number.

7188157089 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7188157089 - 2¹¹ = 7188155041 is a prime.

It is a super-2 number, since 2×7188157089² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7188157189) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15006352 + ... + 15006830.

Almost surely, 2^7188157089 is an apocalyptic number.

7188157089 is the 84783-rd square number.

7188157089 is the 42392-nd centered octagonal number.

It is an amenable number.

7188157089 is a deficient number, since it is larger than the sum of its proper divisors (3395796304).

7188157089 is an frugal number, since it uses more digits than its factorization.

7188157089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 54.

The cubic root of 7188157089 is about 1929.9194655291.

It can be divided in two parts, 718815 and 7089, that added together give a square (725904 = 852²).

The spelling of 7188157089 in words is "seven billion, one hundred eighty-eight million, one hundred fifty-seven thousand, eighty-nine".