500129768947 has 2 divisors, whose sum is σ = 500129768948. Its totient is φ = 500129768946.

The previous prime is 500129768867. The next prime is 500129768969. The reversal of 500129768947 is 749867921005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500129768947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500129768891 and 500129768900.

It is not a weakly prime, because it can be changed into another prime (500129768647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250064884473 + 250064884474.

It is an arithmetic number, because the mean of its divisors is an integer number (250064884474).

Almost surely, 2^500129768947 is an apocalyptic number.

500129768947 is a deficient number, since it is larger than the sum of its proper divisors (1).

500129768947 is an equidigital number, since it uses as much as digits as its factorization.

500129768947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 500129768947 in words is "five hundred billion, one hundred twenty-nine million, seven hundred sixty-eight thousand, nine hundred forty-seven".