505212120379 has 2 divisors, whose sum is σ = 505212120380. Its totient is φ = 505212120378.

The previous prime is 505212120367. The next prime is 505212120461. The reversal of 505212120379 is 973021212505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505212120379 - 2⁷ = 505212120251 is a prime.

It is not a weakly prime, because it can be changed into another prime (505212120359) 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, 252606060189 + 252606060190.

It is an arithmetic number, because the mean of its divisors is an integer number (252606060190).

Almost surely, 2^505212120379 is an apocalyptic number.

505212120379 is a deficient number, since it is larger than the sum of its proper divisors (1).

505212120379 is an equidigital number, since it uses as much as digits as its factorization.

505212120379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 505212120379 in words is "five hundred five billion, two hundred twelve million, one hundred twenty thousand, three hundred seventy-nine".