136267357881 has 4 divisors (see below), whose sum is σ = 181689810512. Its totient is φ = 90844905252.

The previous prime is 136267357843. The next prime is 136267357883. The reversal of 136267357881 is 188753762631.

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 not a de Polignac number, because 136267357881 - 2⁷ = 136267357753 is a prime.

It is a super-2 number, since 2×136267357881² (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 (136267357883) 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, 22711226311 + ... + 22711226316.

It is an arithmetic number, because the mean of its divisors is an integer number (45422452628).

Almost surely, 2^136267357881 is an apocalyptic number.

It is an amenable number.

136267357881 is a deficient number, since it is larger than the sum of its proper divisors (45422452631).

136267357881 is an equidigital number, since it uses as much as digits as its factorization.

136267357881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45422452630.

The product of its digits is 10160640, while the sum is 57.

The spelling of 136267357881 in words is "one hundred thirty-six billion, two hundred sixty-seven million, three hundred fifty-seven thousand, eight hundred eighty-one".