136294487817 has 8 divisors (see below), whose sum is σ = 181802061120. Its totient is φ = 90824953200.

The previous prime is 136294487789. The next prime is 136294487837. The reversal of 136294487817 is 718784492631.

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

It is not a de Polignac number, because 136294487817 - 2⁷ = 136294487689 is a prime.

It is a super-2 number, since 2×136294487817² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136294487837) 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, 9501309 + ... + 9515642.

It is an arithmetic number, because the mean of its divisors is an integer number (22725257640).

Almost surely, 2^136294487817 is an apocalyptic number.

It is an amenable number.

136294487817 is a deficient number, since it is larger than the sum of its proper divisors (45507573303).

136294487817 is a wasteful number, since it uses less digits than its factorization.

136294487817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19019343.

The product of its digits is 16257024, while the sum is 60.

The spelling of 136294487817 in words is "one hundred thirty-six billion, two hundred ninety-four million, four hundred eighty-seven thousand, eight hundred seventeen".