505366401479 has 2 divisors, whose sum is σ = 505366401480. Its totient is φ = 505366401478.

The previous prime is 505366401439. The next prime is 505366401493. The reversal of 505366401479 is 974104663505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505366401479 - 2¹² = 505366397383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505366401439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252683200739 + 252683200740.

It is an arithmetic number, because the mean of its divisors is an integer number (252683200740).

Almost surely, 2^505366401479 is an apocalyptic number.

505366401479 is a deficient number, since it is larger than the sum of its proper divisors (1).

505366401479 is an equidigital number, since it uses as much as digits as its factorization.

505366401479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 505366401479 in words is "five hundred five billion, three hundred sixty-six million, four hundred one thousand, four hundred seventy-nine".