1816038548351 has 8 divisors (see below), whose sum is σ = 1930178939520. Its totient is φ = 1703754098712.

The previous prime is 1816038548341. The next prime is 1816038548399. The reversal of 1816038548351 is 1538458306181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1816038548351 - 2³⁰ = 1814964806527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1816038548293 and 1816038548302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816038548321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463983365 + ... + 463987278.

It is an arithmetic number, because the mean of its divisors is an integer number (241272367440).

Almost surely, 2^{1816038548351} is an apocalyptic number.

1816038548351 is a deficient number, since it is larger than the sum of its proper divisors (114140391169).

1816038548351 is a wasteful number, since it uses less digits than its factorization.

1816038548351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927970765.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 1816038548351 in words is "one trillion, eight hundred sixteen billion, thirty-eight million, five hundred forty-eight thousand, three hundred fifty-one".