3864485871544 has 8 divisors (see below), whose sum is σ = 7245911009160. Its totient is φ = 1932242935768.

The previous prime is 3864485871539. The next prime is 3864485871551. The reversal of 3864485871544 is 4451785844683.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3864485871544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241530366964 + ... + 241530366979.

It is an arithmetic number, because the mean of its divisors is an integer number (905738876145).

Almost surely, 2^{3864485871544} is an apocalyptic number.

It is an amenable number.

3864485871544 is a deficient number, since it is larger than the sum of its proper divisors (3381425137616).

3864485871544 is a wasteful number, since it uses less digits than its factorization.

3864485871544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483060733949 (or 483060733945 counting only the distinct ones).

The product of its digits is 412876800, while the sum is 67.

The spelling of 3864485871544 in words is "three trillion, eight hundred sixty-four billion, four hundred eighty-five million, eight hundred seventy-one thousand, five hundred forty-four".