3865584045397 has 32 divisors (see below), whose sum is σ = 4338390712320. Its totient is φ = 3426718141440.

The previous prime is 3865584045377. The next prime is 3865584045457. The reversal of 3865584045397 is 7935404855683.

It is not a de Polignac number, because 3865584045397 - 2²⁷ = 3865449827669 is a prime.

It is a super-3 number, since 3×3865584045397³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865584045347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43354372 + ... + 43443442.

It is an arithmetic number, because the mean of its divisors is an integer number (135574709760).

Almost surely, 2^{3865584045397} is an apocalyptic number.

It is an amenable number.

3865584045397 is a deficient number, since it is larger than the sum of its proper divisors (472806666923).

3865584045397 is a wasteful number, since it uses less digits than its factorization.

3865584045397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91273.

The product of its (nonzero) digits is 435456000, while the sum is 67.

The spelling of 3865584045397 in words is "three trillion, eight hundred sixty-five billion, five hundred eighty-four million, forty-five thousand, three hundred ninety-seven".