3855670691092 has 24 divisors (see below), whose sum is σ = 7369924605120. Its totient is φ = 1750411220160.

The previous prime is 3855670691039. The next prime is 3855670691099. The reversal of 3855670691092 is 2901960765583.

It is a self number, because there is not a number n which added to its sum of digits gives 3855670691092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855670691099) 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, 54123168 + ... + 54194359.

It is an arithmetic number, because the mean of its divisors is an integer number (307080191880).

Almost surely, 2^{3855670691092} is an apocalyptic number.

It is an amenable number.

3855670691092 is a deficient number, since it is larger than the sum of its proper divisors (3514253914028).

3855670691092 is a wasteful number, since it uses less digits than its factorization.

3855670691092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108318351 (or 108318349 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 61.

The spelling of 3855670691092 in words is "three trillion, eight hundred fifty-five billion, six hundred seventy million, six hundred ninety-one thousand, ninety-two".