1851084345011 has 16 divisors (see below), whose sum is σ = 2040680718720. Its totient is φ = 1665049102080.

The previous prime is 1851084344881. The next prime is 1851084345059. The reversal of 1851084345011 is 1105434801581.

It is a cyclic number.

It is not a de Polignac number, because 1851084345011 - 2¹⁰ = 1851084343987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1851084345011.

It is not an unprimeable number, because it can be changed into a prime (1851084345211) 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, 4206740 + ... + 4625886.

It is an arithmetic number, because the mean of its divisors is an integer number (127542544920).

Almost surely, 2^{1851084345011} is an apocalyptic number.

1851084345011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1851084345011 is a deficient number, since it is larger than the sum of its proper divisors (189596373709).

1851084345011 is a wasteful number, since it uses less digits than its factorization.

1851084345011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423394.

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 1851084345011 in words is "one trillion, eight hundred fifty-one billion, eighty-four million, three hundred forty-five thousand, eleven".