35856634121873 has 4 divisors (see below), whose sum is σ = 36731186173668. Its totient is φ = 34982082070080.

The previous prime is 35856634121857. The next prime is 35856634121881. The reversal of 35856634121873 is 37812143665853.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1176513347584 + 34680120774289 = 1084672^2 + 5888983^2 .

It is a cyclic number.

It is not a de Polignac number, because 35856634121873 - 2⁴ = 35856634121857 is a prime.

It is a super-4 number, since 4×35856634121873⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35856634120873) 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, 437276025836 + ... + 437276025917.

It is an arithmetic number, because the mean of its divisors is an integer number (9182796543417).

Almost surely, 2^{35856634121873} is an apocalyptic number.

It is an amenable number.

35856634121873 is a deficient number, since it is larger than the sum of its proper divisors (874552051795).

35856634121873 is an equidigital number, since it uses as much as digits as its factorization.

35856634121873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874552051794.

The product of its digits is 87091200, while the sum is 62.

The spelling of 35856634121873 in words is "thirty-five trillion, eight hundred fifty-six billion, six hundred thirty-four million, one hundred twenty-one thousand, eight hundred seventy-three".