1803656038149 has 24 divisors (see below), whose sum is σ = 3108341473920. Its totient is φ = 1030660592472.

The previous prime is 1803656038091. The next prime is 1803656038201. The reversal of 1803656038149 is 9418306563081.

1803656038149 is a `hidden beast` number, since 1 + 8 + 0 + 3 + 6 + 560 + 38 + 1 + 49 = 666.

It is not a de Polignac number, because 1803656038149 - 2⁸ = 1803656037893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1803656038095 and 1803656038104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1803656038949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681652509 + ... + 681655154.

It is an arithmetic number, because the mean of its divisors is an integer number (129514228080).

Almost surely, 2^{1803656038149} is an apocalyptic number.

It is an amenable number.

1803656038149 is a deficient number, since it is larger than the sum of its proper divisors (1304685435771).

1803656038149 is a wasteful number, since it uses less digits than its factorization.

1803656038149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363307686 (or 1363307673 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 1803656038149 in words is "one trillion, eight hundred three billion, six hundred fifty-six million, thirty-eight thousand, one hundred forty-nine".