207382728285 has 24 divisors (see below), whose sum is σ = 359590322520. Its totient is φ = 110565067392.

The previous prime is 207382728283. The next prime is 207382728307. The reversal of 207382728285 is 582827283702.

207382728285 is a `hidden beast` number, since 20 + 73 + 8 + 272 + 8 + 285 = 666.

207382728285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 916091289 + 206466636996 = 30267^2 + 454386^2 .

It is not a de Polignac number, because 207382728285 - 2¹ = 207382728283 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207382728281) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 684550 + ... + 939879.

It is an arithmetic number, because the mean of its divisors is an integer number (14982930105).

Almost surely, 2^207382728285 is an apocalyptic number.

It is an amenable number.

207382728285 is a deficient number, since it is larger than the sum of its proper divisors (152207594235).

207382728285 is a wasteful number, since it uses less digits than its factorization.

207382728285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627277 (or 1627274 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 207382728285 in words is "two hundred seven billion, three hundred eighty-two million, seven hundred twenty-eight thousand, two hundred eighty-five".