10381641187 has 4 divisors (see below), whose sum is σ = 10422036936. Its totient is φ = 10341245440.

The previous prime is 10381641163. The next prime is 10381641197. The reversal of 10381641187 is 78114618301.

10381641187 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78114618301 = 13043 ⋅5989007.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10381641187 is a prime.

It is a super-2 number, since 2×10381641187² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10381641157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20197489 + ... + 20198002.

It is an arithmetic number, because the mean of its divisors is an integer number (2605509234).

Almost surely, 2^10381641187 is an apocalyptic number.

10381641187 is a deficient number, since it is larger than the sum of its proper divisors (40395749).

10381641187 is an equidigital number, since it uses as much as digits as its factorization.

10381641187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40395748.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 10381641187 in words is "ten billion, three hundred eighty-one million, six hundred forty-one thousand, one hundred eighty-seven".