1782872863 has 4 divisors (see below), whose sum is σ = 1796911360. Its totient is φ = 1768834368.

The previous prime is 1782872849. The next prime is 1782872887. The reversal of 1782872863 is 3682782871.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1782872863 - 2¹⁷ = 1782741791 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 1782872863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1782872843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7019058 + ... + 7019311.

It is an arithmetic number, because the mean of its divisors is an integer number (449227840).

Almost surely, 2^1782872863 is an apocalyptic number.

1782872863 is a deficient number, since it is larger than the sum of its proper divisors (14038497).

1782872863 is a wasteful number, since it uses less digits than its factorization.

1782872863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14038496.

The product of its digits is 1806336, while the sum is 52.

The square root of 1782872863 is about 42224.0791847495. The cubic root of 1782872863 is about 1212.5699227469.

The spelling of 1782872863 in words is "one billion, seven hundred eighty-two million, eight hundred seventy-two thousand, eight hundred sixty-three".