36716612821 has 6 divisors (see below), whose sum is σ = 42711161910. Its totient is φ = 31471382376.

The previous prime is 36716612771. The next prime is 36716612839. The reversal of 36716612821 is 12821661763.

It can be written as a sum of positive squares in only one way, i.e., 20844140625 + 15872472196 = 144375^2 + 125986^2 .

It is not a de Polignac number, because 36716612821 - 2⁷ = 36716612693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36716612861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 374659266 + ... + 374659363.

It is an arithmetic number, because the mean of its divisors is an integer number (7118526985).

Almost surely, 2^36716612821 is an apocalyptic number.

It is an amenable number.

36716612821 is a deficient number, since it is larger than the sum of its proper divisors (5994549089).

36716612821 is an equidigital number, since it uses as much as digits as its factorization.

36716612821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749318643 (or 749318636 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The spelling of 36716612821 in words is "thirty-six billion, seven hundred sixteen million, six hundred twelve thousand, eight hundred twenty-one".