3871254445185 has 32 divisors (see below), whose sum is σ = 6352944099840. Its totient is φ = 2012067120128.

The previous prime is 3871254445159. The next prime is 3871254445217. The reversal of 3871254445185 is 5815444521783.

It is a cyclic number.

It is not a de Polignac number, because 3871254445185 - 2⁸ = 3871254444929 is a prime.

It is a super-2 number, since 2×3871254445185² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11619300 + ... + 11947829.

It is an arithmetic number, because the mean of its divisors is an integer number (198529503120).

Almost surely, 2^{3871254445185} is an apocalyptic number.

It is an amenable number.

3871254445185 is a deficient number, since it is larger than the sum of its proper divisors (2481689654655).

3871254445185 is a wasteful number, since it uses less digits than its factorization.

3871254445185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23567417.

The product of its digits is 21504000, while the sum is 57.

The spelling of 3871254445185 in words is "three trillion, eight hundred seventy-one billion, two hundred fifty-four million, four hundred forty-five thousand, one hundred eighty-five".