511448914968 has 32 divisors (see below), whose sum is σ = 1279451040000. Its totient is φ = 170372471328.

The previous prime is 511448914967. The next prime is 511448914973. The reversal of 511448914968 is 869419844115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511448914967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6868468 + ... + 6942531.

It is an arithmetic number, because the mean of its divisors is an integer number (39982845000).

Almost surely, 2^511448914968 is an apocalyptic number.

It is an amenable number.

511448914968 is an abundant number, since it is smaller than the sum of its proper divisors (768002125032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511448914968 is a wasteful number, since it uses less digits than its factorization.

511448914968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13812551 (or 13812547 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 60.

The spelling of 511448914968 in words is "five hundred eleven billion, four hundred forty-eight million, nine hundred fourteen thousand, nine hundred sixty-eight".