8385128270 has 16 divisors (see below), whose sum is σ = 15102940320. Its totient is φ = 3351893664.

The previous prime is 8385128261. The next prime is 8385128281. The reversal of 8385128270 is 728215838.

It is a super-2 number, since 2×8385128270² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253337 + ... + 284516.

It is an arithmetic number, because the mean of its divisors is an integer number (943933770).

Almost surely, 2^8385128270 is an apocalyptic number.

8385128270 is a deficient number, since it is larger than the sum of its proper divisors (6717812050).

8385128270 is a wasteful number, since it uses less digits than its factorization.

8385128270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539419.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 8385128270 is about 91570.3460187849. The cubic root of 8385128270 is about 2031.5923563757.

The spelling of 8385128270 in words is "eight billion, three hundred eighty-five million, one hundred twenty-eight thousand, two hundred seventy".