381860190871 has 2 divisors, whose sum is σ = 381860190872. Its totient is φ = 381860190870.

The previous prime is 381860190857. The next prime is 381860190893. The reversal of 381860190871 is 178091068183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381860190871 - 2¹⁵ = 381860158103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381860190671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190930095435 + 190930095436.

It is an arithmetic number, because the mean of its divisors is an integer number (190930095436).

Almost surely, 2^381860190871 is an apocalyptic number.

381860190871 is a deficient number, since it is larger than the sum of its proper divisors (1).

381860190871 is an equidigital number, since it uses as much as digits as its factorization.

381860190871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 52.

The spelling of 381860190871 in words is "three hundred eighty-one billion, eight hundred sixty million, one hundred ninety thousand, eight hundred seventy-one".