1800982851 has 32 divisors (see below), whose sum is σ = 2549729280. Its totient is φ = 1128902400.

The previous prime is 1800982783. The next prime is 1800982871. The reversal of 1800982851 is 1582890081.

It is not a de Polignac number, because 1800982851 - 2¹⁰ = 1800981827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1800982871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1078245 + ... + 1079913.

It is an arithmetic number, because the mean of its divisors is an integer number (79679040).

Almost surely, 2^1800982851 is an apocalyptic number.

1800982851 is a deficient number, since it is larger than the sum of its proper divisors (748746429).

1800982851 is a wasteful number, since it uses less digits than its factorization.

1800982851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 1800982851 is about 42437.9883005781. The cubic root of 1800982851 is about 1216.6617624706.

The spelling of 1800982851 in words is "one billion, eight hundred million, nine hundred eighty-two thousand, eight hundred fifty-one".