13845173771872 has 24 divisors (see below), whose sum is σ = 27258477270696. Its totient is φ = 6922385893632.

The previous prime is 13845173771857. The next prime is 13845173771881. The reversal of 13845173771872 is 27817737154831.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5158558 + ... + 7368925.

It is an arithmetic number, because the mean of its divisors is an integer number (1135769886279).

Almost surely, 2^{13845173771872} is an apocalyptic number.

It is an amenable number.

13845173771872 is a deficient number, since it is larger than the sum of its proper divisors (13413303498824).

13845173771872 is a wasteful number, since it uses less digits than its factorization.

13845173771872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12562030 (or 12562022 counting only the distinct ones).

The product of its digits is 55319040, while the sum is 64.

The spelling of 13845173771872 in words is "thirteen trillion, eight hundred forty-five billion, one hundred seventy-three million, seven hundred seventy-one thousand, eight hundred seventy-two".