505947369359 has 2 divisors, whose sum is σ = 505947369360. Its totient is φ = 505947369358.

The previous prime is 505947369293. The next prime is 505947369391. The reversal of 505947369359 is 953963749505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505947369359 - 2²⁴ = 505930592143 is a prime.

It is a super-2 number, since 2×505947369359² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505947369295 and 505947369304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505947369959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252973684679 + 252973684680.

It is an arithmetic number, because the mean of its divisors is an integer number (252973684680).

Almost surely, 2^505947369359 is an apocalyptic number.

505947369359 is a deficient number, since it is larger than the sum of its proper divisors (1).

505947369359 is an equidigital number, since it uses as much as digits as its factorization.

505947369359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781000, while the sum is 65.

The spelling of 505947369359 in words is "five hundred five billion, nine hundred forty-seven million, three hundred sixty-nine thousand, three hundred fifty-nine".