3748815388161 has 12 divisors (see below), whose sum is σ = 5416283134080. Its totient is φ = 2498597532600.

The previous prime is 3748815388111. The next prime is 3748815388193. The reversal of 3748815388161 is 1618835188473.

3748815388161 is a `hidden beast` number, since 3 + 7 + 4 + 8 + 81 + 538 + 8 + 16 + 1 = 666.

It is not a de Polignac number, because 3748815388161 - 2²¹ = 3748813291009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3748815388111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51021765 + ... + 51095186.

It is an arithmetic number, because the mean of its divisors is an integer number (451356927840).

Almost surely, 2^{3748815388161} is an apocalyptic number.

It is an amenable number.

3748815388161 is a deficient number, since it is larger than the sum of its proper divisors (1667467745919).

3748815388161 is a wasteful number, since it uses less digits than its factorization.

3748815388161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102121036 (or 102121033 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 3748815388161 in words is "three trillion, seven hundred forty-eight billion, eight hundred fifteen million, three hundred eighty-eight thousand, one hundred sixty-one".