381161271641 has 8 divisors (see below), whose sum is σ = 405837177120. Its totient is φ = 356735883328.

The previous prime is 381161271637. The next prime is 381161271643. The reversal of 381161271641 is 146172161183.

It is a happy number.

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 381161271641 - 2² = 381161271637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381161271643) 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, 62626151 + ... + 62632236.

It is an arithmetic number, because the mean of its divisors is an integer number (50729647140).

Almost surely, 2^381161271641 is an apocalyptic number.

It is an amenable number.

381161271641 is a deficient number, since it is larger than the sum of its proper divisors (24675905479).

381161271641 is a wasteful number, since it uses less digits than its factorization.

381161271641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125258583.

The product of its digits is 48384, while the sum is 41.

The spelling of 381161271641 in words is "three hundred eighty-one billion, one hundred sixty-one million, two hundred seventy-one thousand, six hundred forty-one".