3447275475857 has 16 divisors (see below), whose sum is σ = 3607271010000. Its totient is φ = 3290043423744.

The previous prime is 3447275475827. The next prime is 3447275475881. The reversal of 3447275475857 is 7585745727443.

It is a Cunningham number, because it is equal to 1856684²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 187141894801 + 3260133581056 = 432599^2 + 1805584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3447275475857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3447275475817) 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 15 ways as a sum of consecutive naturals, for example, 8708243 + ... + 9095495.

It is an arithmetic number, because the mean of its divisors is an integer number (225454438125).

Almost surely, 2^{3447275475857} is an apocalyptic number.

It is an amenable number.

3447275475857 is a deficient number, since it is larger than the sum of its proper divisors (159995534143).

3447275475857 is a wasteful number, since it uses less digits than its factorization.

3447275475857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390820.

The product of its digits is 921984000, while the sum is 68.

The spelling of 3447275475857 in words is "three trillion, four hundred forty-seven billion, two hundred seventy-five million, four hundred seventy-five thousand, eight hundred fifty-seven".