3818685575144 has 128 divisors (see below), whose sum is σ = 8246098080000. Its totient is φ = 1641868462080.

The previous prime is 3818685575087. The next prime is 3818685575147. The reversal of 3818685575144 is 4415755868183.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3818685575147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24679829 + ... + 24834075.

It is an arithmetic number, because the mean of its divisors is an integer number (64422641250).

Almost surely, 2^{3818685575144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3818685575144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4123049040000).

3818685575144 is an abundant number, since it is smaller than the sum of its proper divisors (4427412504856).

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

3818685575144 is a wasteful number, since it uses less digits than its factorization.

3818685575144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154491 (or 154487 counting only the distinct ones).

The product of its digits is 129024000, while the sum is 65.

The spelling of 3818685575144 in words is "three trillion, eight hundred eighteen billion, six hundred eighty-five million, five hundred seventy-five thousand, one hundred forty-four".