508966771087 has 4 divisors (see below), whose sum is σ = 509595902640. Its totient is φ = 508337639536.

The previous prime is 508966771043. The next prime is 508966771207. The reversal of 508966771087 is 780177669805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780177669805 = 5 ⋅156035533961.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-508966771087 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 (508966771387) 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, 314564563 + ... + 314566180.

It is an arithmetic number, because the mean of its divisors is an integer number (127398975660).

Almost surely, 2^508966771087 is an apocalyptic number.

508966771087 is a deficient number, since it is larger than the sum of its proper divisors (629131553).

508966771087 is an equidigital number, since it uses as much as digits as its factorization.

508966771087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629131552.

The product of its (nonzero) digits is 35562240, while the sum is 64.

The spelling of 508966771087 in words is "five hundred eight billion, nine hundred sixty-six million, seven hundred seventy-one thousand, eighty-seven".