517142777307103 has 4 divisors (see below), whose sum is σ = 517227540922008. Its totient is φ = 517058013692200.

The previous prime is 517142777307071. The next prime is 517142777307131. The reversal of 517142777307103 is 301703777241715.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 517142777307103 - 2⁵ = 517142777307071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517142777304103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42381798301 + ... + 42381810502.

It is an arithmetic number, because the mean of its divisors is an integer number (129306885230502).

Almost surely, 2^{517142777307103} is an apocalyptic number.

517142777307103 is a deficient number, since it is larger than the sum of its proper divisors (84763614905).

517142777307103 is an equidigital number, since it uses as much as digits as its factorization.

517142777307103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84763614904.

The product of its (nonzero) digits is 6050520, while the sum is 55.

The spelling of 517142777307103 in words is "five hundred seventeen trillion, one hundred forty-two billion, seven hundred seventy-seven million, three hundred seven thousand, one hundred three".