8136988858 has 4 divisors (see below), whose sum is σ = 12205483290. Its totient is φ = 4068494428.

The previous prime is 8136988807. The next prime is 8136988877. The reversal of 8136988858 is 8588896318.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8588896318 = 2 ⋅4294448159.

It can be written as a sum of positive squares in only one way, i.e., 6910098129 + 1226890729 = 83127^2 + 35027^2 .

It is a super-2 number, since 2×8136988858² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8136988858.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2034247213 + ... + 2034247216.

Almost surely, 2^8136988858 is an apocalyptic number.

8136988858 is a deficient number, since it is larger than the sum of its proper divisors (4068494432).

8136988858 is a wasteful number, since it uses less digits than its factorization.

8136988858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068494431.

The product of its digits is 26542080, while the sum is 64.

The square root of 8136988858 is about 90205.2595916668. The cubic root of 8136988858 is about 2011.3511915093.

The spelling of 8136988858 in words is "eight billion, one hundred thirty-six million, nine hundred eighty-eight thousand, eight hundred fifty-eight".