381445484543671 has 2 divisors, whose sum is σ = 381445484543672. Its totient is φ = 381445484543670.

The previous prime is 381445484543653. The next prime is 381445484543693. The reversal of 381445484543671 is 176345484544183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381445484543671 - 2⁵ = 381445484543639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381445484543597 and 381445484543606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381445484543621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190722742271835 + 190722742271836.

It is an arithmetic number, because the mean of its divisors is an integer number (190722742271836).

Almost surely, 2^{381445484543671} is an apocalyptic number.

381445484543671 is a deficient number, since it is larger than the sum of its proper divisors (1).

381445484543671 is an equidigital number, since it uses as much as digits as its factorization.

381445484543671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 619315200, while the sum is 67.

The spelling of 381445484543671 in words is "three hundred eighty-one trillion, four hundred forty-five billion, four hundred eighty-four million, five hundred forty-three thousand, six hundred seventy-one".