381372506194973 has 2 divisors, whose sum is σ = 381372506194974. Its totient is φ = 381372506194972.

The previous prime is 381372506194957. The next prime is 381372506195183. The reversal of 381372506194973 is 379491605273183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256573825198084 + 124798680996889 = 16017922^2 + 11171333^2 .

It is a cyclic number.

It is not a de Polignac number, because 381372506194973 - 2⁴ = 381372506194957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381372506094973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190686253097486 + 190686253097487.

It is an arithmetic number, because the mean of its divisors is an integer number (190686253097487).

It is a 2-persistent number, because it is pandigital, and so is 2⋅381372506194973 = 762745012389946, but 3⋅381372506194973 = 1144117518584919 is not.

Almost surely, 2^{381372506194973} is an apocalyptic number.

It is an amenable number.

381372506194973 is a deficient number, since it is larger than the sum of its proper divisors (1).

381372506194973 is an equidigital number, since it uses as much as digits as its factorization.

381372506194973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 205752960, while the sum is 68.

The spelling of 381372506194973 in words is "three hundred eighty-one trillion, three hundred seventy-two billion, five hundred six million, one hundred ninety-four thousand, nine hundred seventy-three".