36873216577 has 8 divisors (see below), whose sum is σ = 38035169000. Its totient is φ = 35719968384.

The previous prime is 36873216557. The next prime is 36873216587. The reversal of 36873216577 is 77561237863.

It is a happy number.

It is a Cunningham number, because it is equal to 192024²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 32994542736 + 3878673841 = 181644^2 + 62279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36873216577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36873216547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167452 + ... + 2184397.

It is an arithmetic number, because the mean of its divisors is an integer number (4754396125).

Almost surely, 2^36873216577 is an apocalyptic number.

36873216577 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

36873216577 is a deficient number, since it is larger than the sum of its proper divisors (1161952423).

36873216577 is a wasteful number, since it uses less digits than its factorization.

36873216577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352115.

The product of its digits is 8890560, while the sum is 55.

The spelling of 36873216577 in words is "thirty-six billion, eight hundred seventy-three million, two hundred sixteen thousand, five hundred seventy-seven".