36232909681 has 4 divisors (see below), whose sum is σ = 36299149552. Its totient is φ = 36166669812.

The previous prime is 36232909651. The next prime is 36232909729. The reversal of 36232909681 is 18690923263.

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 36232909681 - 2⁷ = 36232909553 is a prime.

It is a super-2 number, since 2×36232909681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36232909621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33119115 + ... + 33120208.

It is an arithmetic number, because the mean of its divisors is an integer number (9074787388).

Almost surely, 2^36232909681 is an apocalyptic number.

It is an amenable number.

36232909681 is a deficient number, since it is larger than the sum of its proper divisors (66239871).

36232909681 is an equidigital number, since it uses as much as digits as its factorization.

36232909681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66239870.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 36232909681 in words is "thirty-six billion, two hundred thirty-two million, nine hundred nine thousand, six hundred eighty-one".