1817385000001 has 16 divisors (see below), whose sum is σ = 1854942336000. Its totient is φ = 1780167669840.

The previous prime is 1817384999999. The next prime is 1817385000019. The reversal of 1817385000001 is 1000005837181.

It is a cyclic number.

It is not a de Polignac number, because 1817385000001 - 2¹ = 1817384999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1817385000031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34681246 + ... + 34733608.

It is an arithmetic number, because the mean of its divisors is an integer number (115933896000).

Almost surely, 2^{1817385000001} is an apocalyptic number.

It is an amenable number.

1817385000001 is a deficient number, since it is larger than the sum of its proper divisors (37557335999).

1817385000001 is a wasteful number, since it uses less digits than its factorization.

1817385000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55596.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 1817385000001 in words is "one trillion, eight hundred seventeen billion, three hundred eighty-five million, one", and thus it is an aban number.