505544634113 has 4 divisors (see below), whose sum is σ = 521852525568. Its totient is φ = 489236742660.

The previous prime is 505544634107. The next prime is 505544634163. The reversal of 505544634113 is 311436445505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505544634113 - 2⁴ = 505544634097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505544634163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8153945681 + ... + 8153945742.

It is an arithmetic number, because the mean of its divisors is an integer number (130463131392).

Almost surely, 2^505544634113 is an apocalyptic number.

It is an amenable number.

505544634113 is a deficient number, since it is larger than the sum of its proper divisors (16307891455).

505544634113 is a wasteful number, since it uses less digits than its factorization.

505544634113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16307891454.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 505544634113 in words is "five hundred five billion, five hundred forty-four million, six hundred thirty-four thousand, one hundred thirteen".