3855156744 has 32 divisors (see below), whose sum is σ = 9862031520. Its totient is φ = 1255166976.

The previous prime is 3855156743. The next prime is 3855156761. The reversal of 3855156744 is 4476515583.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3855156693 and 3855156702.

It is not an unprimeable number, because it can be changed into a prime (3855156743) 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, 1866777 + ... + 1868840.

It is an arithmetic number, because the mean of its divisors is an integer number (308188485).

Almost surely, 2^3855156744 is an apocalyptic number.

It is an amenable number.

3855156744 is an abundant number, since it is smaller than the sum of its proper divisors (6006874776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3855156744 is a wasteful number, since it uses less digits than its factorization.

3855156744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735669 (or 3735665 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 48.

The square root of 3855156744 is about 62089.9085520344. The cubic root of 3855156744 is about 1568.0046519107.

The spelling of 3855156744 in words is "three billion, eight hundred fifty-five million, one hundred fifty-six thousand, seven hundred forty-four".