3861867025577 has 4 divisors (see below), whose sum is σ = 4212945846096. Its totient is φ = 3510788205060.

The previous prime is 3861867025493. The next prime is 3861867025607. The reversal of 3861867025577 is 7755207681683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3861867025577 - 2⁴⁰ = 2762355397801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3861867055577) 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, 175539410243 + ... + 175539410264.

It is an arithmetic number, because the mean of its divisors is an integer number (1053236461524).

Almost surely, 2^{3861867025577} is an apocalyptic number.

It is an amenable number.

3861867025577 is a deficient number, since it is larger than the sum of its proper divisors (351078820519).

3861867025577 is a wasteful number, since it uses less digits than its factorization.

3861867025577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351078820518.

The product of its (nonzero) digits is 118540800, while the sum is 65.

The spelling of 3861867025577 in words is "three trillion, eight hundred sixty-one billion, eight hundred sixty-seven million, twenty-five thousand, five hundred seventy-seven".