10187326827 has 20 divisors (see below), whose sum is σ = 15243499656. Its totient is φ = 6780218400.

The previous prime is 10187326813. The next prime is 10187326847. The reversal of 10187326827 is 72862378101.

It is not a de Polignac number, because 10187326827 - 2¹⁶ = 10187261291 is a prime.

It is a super-2 number, since 2×10187326827² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (10187326847) 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 19 ways as a sum of consecutive naturals, for example, 55953 + ... + 153314.

Almost surely, 2^10187326827 is an apocalyptic number.

10187326827 is a deficient number, since it is larger than the sum of its proper divisors (5056172829).

10187326827 is an equidigital number, since it uses as much as digits as its factorization.

10187326827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209880 (or 209871 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 10187326827 in words is "ten billion, one hundred eighty-seven million, three hundred twenty-six thousand, eight hundred twenty-seven".