371823065821 has 2 divisors, whose sum is σ = 371823065822. Its totient is φ = 371823065820.

The previous prime is 371823065777. The next prime is 371823065827. The reversal of 371823065821 is 128560328173.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362795405625 + 9027660196 = 602325^2 + 95014^2 .

It is a cyclic number.

It is not a de Polignac number, because 371823065821 - 2¹⁵ = 371823033053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (371823065827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185911532910 + 185911532911.

It is an arithmetic number, because the mean of its divisors is an integer number (185911532911).

Almost surely, 2^371823065821 is an apocalyptic number.

It is an amenable number.

371823065821 is a deficient number, since it is larger than the sum of its proper divisors (1).

371823065821 is an equidigital number, since it uses as much as digits as its factorization.

371823065821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 371823065821 in words is "three hundred seventy-one billion, eight hundred twenty-three million, sixty-five thousand, eight hundred twenty-one".