3685278333 has 16 divisors (see below), whose sum is σ = 5362209792. Its totient is φ = 2232750000.

The previous prime is 3685278307. The next prime is 3685278353. The reversal of 3685278333 is 3338725863.

It is not a de Polignac number, because 3685278333 - 2⁵ = 3685278301 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 (3685278353) 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 15 ways as a sum of consecutive naturals, for example, 90108 + ... + 124458.

It is an arithmetic number, because the mean of its divisors is an integer number (335138112).

Almost surely, 2^3685278333 is an apocalyptic number.

3685278333 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3685278333 is a deficient number, since it is larger than the sum of its proper divisors (1676931459).

3685278333 is a wasteful number, since it uses less digits than its factorization.

3685278333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37616.

The product of its digits is 2177280, while the sum is 48.

The square root of 3685278333 is about 60706.4933347331. The cubic root of 3685278333 is about 1544.6263215846.

The spelling of 3685278333 in words is "three billion, six hundred eighty-five million, two hundred seventy-eight thousand, three hundred thirty-three".