381113587163 has 4 divisors (see below), whose sum is σ = 381617040480. Its totient is φ = 380610133848.

The previous prime is 381113587109. The next prime is 381113587181. The reversal of 381113587163 is 361785311183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381113587163 - 2²⁸ = 380845151707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381113587963) 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, 251725523 + ... + 251727036.

It is an arithmetic number, because the mean of its divisors is an integer number (95404260120).

Almost surely, 2^381113587163 is an apocalyptic number.

381113587163 is a deficient number, since it is larger than the sum of its proper divisors (503453317).

381113587163 is an equidigital number, since it uses as much as digits as its factorization.

381113587163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503453316.

The product of its digits is 362880, while the sum is 47.

The spelling of 381113587163 in words is "three hundred eighty-one billion, one hundred thirteen million, five hundred eighty-seven thousand, one hundred sixty-three".