87518135415 has 8 divisors (see below), whose sum is σ = 140029016688. Its totient is φ = 46676338880.

The previous prime is 87518135381. The next prime is 87518135417. The reversal of 87518135415 is 51453181578.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87518135415 - 2¹² = 87518131319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87518135417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917271166 + ... + 2917271195.

It is an arithmetic number, because the mean of its divisors is an integer number (17503627086).

Almost surely, 2^87518135415 is an apocalyptic number.

87518135415 is a deficient number, since it is larger than the sum of its proper divisors (52510881273).

87518135415 is a wasteful number, since it uses less digits than its factorization.

87518135415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834542369.

The product of its digits is 672000, while the sum is 48.

The spelling of 87518135415 in words is "eighty-seven billion, five hundred eighteen million, one hundred thirty-five thousand, four hundred fifteen".