8538919012 has 54 divisors (see below), whose sum is σ = 16324190358. Its totient is φ = 3906459648.

The previous prime is 8538919009. The next prime is 8538919043. The reversal of 8538919012 is 2109198358.

It can be written as a sum of positive squares in 9 ways, for example, as 4254431076 + 4284487936 = 65226^2 + 65456^2 .

It is a super-2 number, since 2×8538919012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12687508 + ... + 12688180.

Almost surely, 2^8538919012 is an apocalyptic number.

It is an amenable number.

8538919012 is a deficient number, since it is larger than the sum of its proper divisors (7785271346).

8538919012 is a wasteful number, since it uses less digits than its factorization.

8538919012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 8538919012 is about 92406.2714971230. The cubic root of 8538919012 is about 2043.9375931176.

It can be divided in two parts, 85389 and 19012, that added together give a palindrome (104401).

The spelling of 8538919012 in words is "eight billion, five hundred thirty-eight million, nine hundred nineteen thousand, twelve".