10812783505 has 8 divisors (see below), whose sum is σ = 13042571112. Its totient is φ = 8605406208.

The previous prime is 10812783493. The next prime is 10812783523. The reversal of 10812783505 is 50538721801.

It can be written as a sum of positive squares in 4 ways, for example, as 2391601216 + 8421182289 = 48904^2 + 91767^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10812783505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5601514 + ... + 5603443.

It is an arithmetic number, because the mean of its divisors is an integer number (1630321389).

Almost surely, 2^10812783505 is an apocalyptic number.

It is an amenable number.

10812783505 is a deficient number, since it is larger than the sum of its proper divisors (2229787607).

10812783505 is a wasteful number, since it uses less digits than its factorization.

10812783505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205155.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 10812783505 in words is "ten billion, eight hundred twelve million, seven hundred eighty-three thousand, five hundred five".