3851845559956 has 24 divisors (see below), whose sum is σ = 6755625797760. Its totient is φ = 1921668457632.

The previous prime is 3851845559953. The next prime is 3851845559957. The reversal of 3851845559956 is 6599555481583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3851845559953) 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, 8979210 + ... + 9398398.

It is an arithmetic number, because the mean of its divisors is an integer number (281484408240).

Almost surely, 2^{3851845559956} is an apocalyptic number.

It is an amenable number.

3851845559956 is a deficient number, since it is larger than the sum of its proper divisors (2903780237804).

3851845559956 is a wasteful number, since it uses less digits than its factorization.

3851845559956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424263 (or 424261 counting only the distinct ones).

The product of its digits is 1166400000, while the sum is 73.

The spelling of 3851845559956 in words is "three trillion, eight hundred fifty-one billion, eight hundred forty-five million, five hundred fifty-nine thousand, nine hundred fifty-six".