10783857856 has 28 divisors (see below), whose sum is σ = 21896879752. Its totient is φ = 5266533888.

The previous prime is 10783857839. The next prime is 10783857859. The reversal of 10783857856 is 65875838701.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10783857856.

It is not an unprimeable number, because it can be changed into a prime (10783857859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1956525 + ... + 1962028.

Almost surely, 2^10783857856 is an apocalyptic number.

10783857856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10783857856 is an abundant number, since it is smaller than the sum of its proper divisors (11113021896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10783857856 is an equidigital number, since it uses as much as digits as its factorization.

10783857856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918608 (or 3918598 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 10783857856 in words is "ten billion, seven hundred eighty-three million, eight hundred fifty-seven thousand, eight hundred fifty-six".