12783578837851 has 8 divisors (see below), whose sum is σ = 12800064636224. Its totient is φ = 12767093656200.

The previous prime is 12783578837791. The next prime is 12783578837881. The reversal of 12783578837851 is 15873887538721.

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 12783578837851 - 2¹⁷ = 12783578706779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12783578837881) 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, 53178076 + ... + 53417926.

It is an arithmetic number, because the mean of its divisors is an integer number (1600008079528).

Almost surely, 2^{12783578837851} is an apocalyptic number.

12783578837851 is a deficient number, since it is larger than the sum of its proper divisors (16485798373).

12783578837851 is an equidigital number, since it uses as much as digits as its factorization.

12783578837851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308361.

The product of its digits is 632217600, while the sum is 73.

The spelling of 12783578837851 in words is "twelve trillion, seven hundred eighty-three billion, five hundred seventy-eight million, eight hundred thirty-seven thousand, eight hundred fifty-one".