3844870628451 has 4 divisors (see below), whose sum is σ = 5126494171272. Its totient is φ = 2563247085632.

The previous prime is 3844870628371. The next prime is 3844870628497. The reversal of 3844870628451 is 1548260784483.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3844870628451 - 2¹¹ = 3844870626403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3844870628051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640811771406 + ... + 640811771411.

It is an arithmetic number, because the mean of its divisors is an integer number (1281623542818).

Almost surely, 2^{3844870628451} is an apocalyptic number.

3844870628451 is a deficient number, since it is larger than the sum of its proper divisors (1281623542821).

3844870628451 is a wasteful number, since it uses less digits than its factorization.

3844870628451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281623542820.

The product of its (nonzero) digits is 41287680, while the sum is 60.

The spelling of 3844870628451 in words is "three trillion, eight hundred forty-four billion, eight hundred seventy million, six hundred twenty-eight thousand, four hundred fifty-one".