3875505578317 has 2 divisors, whose sum is σ = 3875505578318. Its totient is φ = 3875505578316.

The previous prime is 3875505578221. The next prime is 3875505578363. The reversal of 3875505578317 is 7138755055783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3087421495236 + 788084083081 = 1757106^2 + 887741^2 .

It is a cyclic number.

It is not a de Polignac number, because 3875505578317 - 2²⁷ = 3875371360589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3875505578117) 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 as a sum of consecutive naturals, namely, 1937752789158 + 1937752789159.

It is an arithmetic number, because the mean of its divisors is an integer number (1937752789159).

Almost surely, 2^{3875505578317} is an apocalyptic number.

It is an amenable number.

3875505578317 is a deficient number, since it is larger than the sum of its proper divisors (1).

3875505578317 is an equidigital number, since it uses as much as digits as its factorization.

3875505578317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480000, while the sum is 64.

The spelling of 3875505578317 in words is "three trillion, eight hundred seventy-five billion, five hundred five million, five hundred seventy-eight thousand, three hundred seventeen".