36681067121 has 4 divisors (see below), whose sum is σ = 36760292352. Its totient is φ = 36601841892.

The previous prime is 36681067117. The next prime is 36681067151. The reversal of 36681067121 is 12176018663.

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 36681067121 - 2² = 36681067117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36681067151) 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, 39611921 + ... + 39612846.

It is an arithmetic number, because the mean of its divisors is an integer number (9190073088).

Almost surely, 2^36681067121 is an apocalyptic number.

It is an amenable number.

36681067121 is a deficient number, since it is larger than the sum of its proper divisors (79225231).

36681067121 is an equidigital number, since it uses as much as digits as its factorization.

36681067121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79225230.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 36681067121 in words is "thirty-six billion, six hundred eighty-one million, sixty-seven thousand, one hundred twenty-one".