1782100052 has 12 divisors (see below), whose sum is σ = 3119234580. Its totient is φ = 890890176.

The previous prime is 1782100051. The next prime is 1782100057. The reversal of 1782100052 is 2500012871.

It can be written as a sum of positive squares in 2 ways, for example, as 1495678276 + 286421776 = 38674^2 + 16924^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1782099994 and 1782100030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1782100051) 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 3 ways as a sum of consecutive naturals, for example, 12833 + ... + 61064.

It is an arithmetic number, because the mean of its divisors is an integer number (259936215).

Almost surely, 2^1782100052 is an apocalyptic number.

It is an amenable number.

1782100052 is a deficient number, since it is larger than the sum of its proper divisors (1337134528).

1782100052 is a wasteful number, since it uses less digits than its factorization.

1782100052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79930 (or 79928 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1782100052 is about 42214.9268861146. The cubic root of 1782100052 is about 1212.3946956692.

The spelling of 1782100052 in words is "one billion, seven hundred eighty-two million, one hundred thousand, fifty-two".