1082785542885 has 64 divisors (see below), whose sum is σ = 1990332207360. Its totient is φ = 558134876160.

The previous prime is 1082785542851. The next prime is 1082785542887. The reversal of 1082785542885 is 5882455872801.

1082785542885 is a `hidden beast` number, since 1 + 0 + 8 + 2 + 7 + 8 + 5 + 542 + 8 + 85 = 666.

1082785542885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1082785542885 - 2⁶ = 1082785542821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082785542887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321892 + ... + 1506381.

It is an arithmetic number, because the mean of its divisors is an integer number (31098940740).

Almost surely, 2^{1082785542885} is an apocalyptic number.

1082785542885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1082785542885 is a deficient number, since it is larger than the sum of its proper divisors (907546664475).

1082785542885 is a wasteful number, since it uses less digits than its factorization.

1082785542885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828435 (or 1828429 counting only the distinct ones).

The product of its (nonzero) digits is 57344000, while the sum is 63.

The spelling of 1082785542885 in words is "one trillion, eighty-two billion, seven hundred eighty-five million, five hundred forty-two thousand, eight hundred eighty-five".