8118415487 has 16 divisors (see below), whose sum is σ = 10118384640. Its totient is φ = 6342047712.

The previous prime is 8118415477. The next prime is 8118415489. The reversal of 8118415487 is 7845148118.

It is a happy number.

It is not a de Polignac number, because 8118415487 - 2⁶ = 8118415423 is a prime.

It is a super-2 number, since 2×8118415487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8118415489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557453 + ... + 571830.

It is an arithmetic number, because the mean of its divisors is an integer number (632399040).

Almost surely, 2^8118415487 is an apocalyptic number.

8118415487 is a deficient number, since it is larger than the sum of its proper divisors (1999969153).

8118415487 is a wasteful number, since it uses less digits than its factorization.

8118415487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129382.

The product of its digits is 286720, while the sum is 47.

The square root of 8118415487 is about 90102.2501772292. The cubic root of 8118415487 is about 2009.8196654296.

The spelling of 8118415487 in words is "eight billion, one hundred eighteen million, four hundred fifteen thousand, four hundred eighty-seven".