379866121247 has 2 divisors, whose sum is σ = 379866121248. Its totient is φ = 379866121246.

The previous prime is 379866121177. The next prime is 379866121259. The reversal of 379866121247 is 742121668973.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 379866121247 - 2¹⁰ = 379866120223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 379866121192 and 379866121201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379866121277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189933060623 + 189933060624.

It is an arithmetic number, because the mean of its divisors is an integer number (189933060624).

Almost surely, 2^379866121247 is an apocalyptic number.

379866121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

379866121247 is an equidigital number, since it uses as much as digits as its factorization.

379866121247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 56.

The spelling of 379866121247 in words is "three hundred seventy-nine billion, eight hundred sixty-six million, one hundred twenty-one thousand, two hundred forty-seven".