3861145476445 has 8 divisors (see below), whose sum is σ = 4633810635744. Its totient is φ = 3088625671824.

The previous prime is 3861145476443. The next prime is 3861145476481. The reversal of 3861145476445 is 5446745411683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3861145476445 - 2¹ = 3861145476443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3861145476445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861145476443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36280219 + ... + 36386488.

It is an arithmetic number, because the mean of its divisors is an integer number (579226329468).

Almost surely, 2^{3861145476445} is an apocalyptic number.

It is an amenable number.

3861145476445 is a deficient number, since it is larger than the sum of its proper divisors (772665159299).

3861145476445 is a wasteful number, since it uses less digits than its factorization.

3861145476445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72677339.

The product of its digits is 38707200, while the sum is 58.

The spelling of 3861145476445 in words is "three trillion, eight hundred sixty-one billion, one hundred forty-five million, four hundred seventy-six thousand, four hundred forty-five".