27830802321 has 24 divisors (see below), whose sum is σ = 46696080704. Its totient is φ = 15642603360.

The previous prime is 27830802319. The next prime is 27830802343. The reversal of 27830802321 is 12320803872.

It is a happy number.

27830802321 is a `hidden beast` number, since 27 + 8 + 308 + 0 + 2 + 321 = 666.

It is not a de Polignac number, because 27830802321 - 2¹ = 27830802319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27830802421) 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, 3617131 + ... + 3624816.

Almost surely, 2^27830802321 is an apocalyptic number.

27830802321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27830802321 is a deficient number, since it is larger than the sum of its proper divisors (18865278383).

27830802321 is a wasteful number, since it uses less digits than its factorization.

27830802321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242021 (or 7242018 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 27830802321 in words is "twenty-seven billion, eight hundred thirty million, eight hundred two thousand, three hundred twenty-one".