506436771963 has 4 divisors (see below), whose sum is σ = 675249029288. Its totient is φ = 337624514640.

The previous prime is 506436771881. The next prime is 506436771977. The reversal of 506436771963 is 369177634605.

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

It is not a de Polignac number, because 506436771963 - 2²⁶ = 506369663099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506436771983) 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, 84406128658 + ... + 84406128663.

It is an arithmetic number, because the mean of its divisors is an integer number (168812257322).

Almost surely, 2^506436771963 is an apocalyptic number.

506436771963 is a deficient number, since it is larger than the sum of its proper divisors (168812257325).

506436771963 is a wasteful number, since it uses less digits than its factorization.

506436771963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168812257324.

The product of its (nonzero) digits is 17146080, while the sum is 57.

The spelling of 506436771963 in words is "five hundred six billion, four hundred thirty-six million, seven hundred seventy-one thousand, nine hundred sixty-three".