381624425671 has 2 divisors, whose sum is σ = 381624425672. Its totient is φ = 381624425670.

The previous prime is 381624425617. The next prime is 381624425683. The reversal of 381624425671 is 176524426183.

Together with previous prime (381624425617) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381624425671 - 2¹¹ = 381624423623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381624425071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190812212835 + 190812212836.

It is an arithmetic number, because the mean of its divisors is an integer number (190812212836).

Almost surely, 2^381624425671 is an apocalyptic number.

381624425671 is a deficient number, since it is larger than the sum of its proper divisors (1).

381624425671 is an equidigital number, since it uses as much as digits as its factorization.

381624425671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 49.

The spelling of 381624425671 in words is "three hundred eighty-one billion, six hundred twenty-four million, four hundred twenty-five thousand, six hundred seventy-one".