136827017881 has 4 divisors (see below), whose sum is σ = 136828945152. Its totient is φ = 136825090612.

The previous prime is 136827017879. The next prime is 136827017897. The reversal of 136827017881 is 188710728631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136827017881 - 2¹ = 136827017879 is a prime.

It is a super-2 number, since 2×136827017881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136827017381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852901 + ... + 1000546.

It is an arithmetic number, because the mean of its divisors is an integer number (34207236288).

Almost surely, 2^136827017881 is an apocalyptic number.

It is an amenable number.

136827017881 is a deficient number, since it is larger than the sum of its proper divisors (1927271).

136827017881 is an equidigital number, since it uses as much as digits as its factorization.

136827017881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927270.

The product of its (nonzero) digits is 903168, while the sum is 52.

The spelling of 136827017881 in words is "one hundred thirty-six billion, eight hundred twenty-seven million, seventeen thousand, eight hundred eighty-one".