511464640287 has 64 divisors (see below), whose sum is σ = 735596052480. Its totient is φ = 314962712064.

The previous prime is 511464640237. The next prime is 511464640289. The reversal of 511464640287 is 782046464115.

It is not a de Polignac number, because 511464640287 - 2¹¹ = 511464638239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511464640289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 908462668 + ... + 908463230.

It is an arithmetic number, because the mean of its divisors is an integer number (11493688320).

Almost surely, 2^511464640287 is an apocalyptic number.

511464640287 is a deficient number, since it is larger than the sum of its proper divisors (224131412193).

511464640287 is a wasteful number, since it uses less digits than its factorization.

511464640287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 511464640287 in words is "five hundred eleven billion, four hundred sixty-four million, six hundred forty thousand, two hundred eighty-seven".