381163640579 has 8 divisors (see below), whose sum is σ = 414167623680. Its totient is φ = 349453931400.

The previous prime is 381163640569. The next prime is 381163640603. The reversal of 381163640579 is 975046361183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381163640579 - 2⁸ = 381163640323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381163640579.

It is not an unprimeable number, because it can be changed into a prime (381163640569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323567867 + ... + 323569044.

It is an arithmetic number, because the mean of its divisors is an integer number (51770952960).

Almost surely, 2^381163640579 is an apocalyptic number.

381163640579 is a deficient number, since it is larger than the sum of its proper divisors (33003983101).

381163640579 is a wasteful number, since it uses less digits than its factorization.

381163640579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647136961.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 381163640579 in words is "three hundred eighty-one billion, one hundred sixty-three million, six hundred forty thousand, five hundred seventy-nine".