506784376873 has 2 divisors, whose sum is σ = 506784376874. Its totient is φ = 506784376872.

The previous prime is 506784376807. The next prime is 506784376913. The reversal of 506784376873 is 378673487605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329047935129 + 177736441744 = 573627^2 + 421588^2 .

It is a cyclic number.

It is not a de Polignac number, because 506784376873 - 2⁹ = 506784376361 is a prime.

It is not a weakly prime, because it can be changed into another prime (509784376873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253392188436 + 253392188437.

It is an arithmetic number, because the mean of its divisors is an integer number (253392188437).

Almost surely, 2^506784376873 is an apocalyptic number.

It is an amenable number.

506784376873 is a deficient number, since it is larger than the sum of its proper divisors (1).

506784376873 is an equidigital number, since it uses as much as digits as its factorization.

506784376873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142248960, while the sum is 64.

The spelling of 506784376873 in words is "five hundred six billion, seven hundred eighty-four million, three hundred seventy-six thousand, eight hundred seventy-three".