1780852812 has 24 divisors (see below), whose sum is σ = 4212247536. Its totient is φ = 585485568.

The previous prime is 1780852807. The next prime is 1780852819. The reversal of 1780852812 is 2182580871.

It is not an unprimeable number, because it can be changed into a prime (1780852819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015593 + ... + 1017344.

It is an arithmetic number, because the mean of its divisors is an integer number (175510314).

Almost surely, 2^1780852812 is an apocalyptic number.

1780852812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1780852812 is an abundant number, since it is smaller than the sum of its proper divisors (2431394724).

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

1780852812 is a wasteful number, since it uses less digits than its factorization.

1780852812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033017 (or 2033015 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 42.

The square root of 1780852812 is about 42200.1518006748. The cubic root of 1780852812 is about 1212.1117897301. Note that the first 3 decimals are identical.

The spelling of 1780852812 in words is "one billion, seven hundred eighty million, eight hundred fifty-two thousand, eight hundred twelve".