136811722847 has 8 divisors (see below), whose sum is σ = 140516250432. Its totient is φ = 133107559200.

The previous prime is 136811722823. The next prime is 136811722877. The reversal of 136811722847 is 748227118631.

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

It is not a de Polignac number, because 136811722847 - 2²⁰ = 136810674271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136811722795 and 136811722804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136811722877) 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, 783197 + ... + 941817.

It is an arithmetic number, because the mean of its divisors is an integer number (17564531304).

Almost surely, 2^136811722847 is an apocalyptic number.

136811722847 is a deficient number, since it is larger than the sum of its proper divisors (3704527585).

136811722847 is a wasteful number, since it uses less digits than its factorization.

136811722847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181969.

The product of its digits is 903168, while the sum is 50.

The spelling of 136811722847 in words is "one hundred thirty-six billion, eight hundred eleven million, seven hundred twenty-two thousand, eight hundred forty-seven".