511813327968 has 96 divisors (see below), whose sum is σ = 1492940574720. Its totient is φ = 170587105920.

The previous prime is 511813327897. The next prime is 511813327979. The reversal of 511813327968 is 869723318115.

511813327968 is a `hidden beast` number, since 5 + 1 + 181 + 332 + 79 + 68 = 666.

511813327968 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10681921 + ... + 10729727.

It is an arithmetic number, because the mean of its divisors is an integer number (15551464320).

Almost surely, 2^511813327968 is an apocalyptic number.

It is an amenable number.

511813327968 is an abundant number, since it is smaller than the sum of its proper divisors (981127246752).

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

511813327968 is a wasteful number, since it uses less digits than its factorization.

511813327968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60217 (or 60203 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 511813327968 in words is "five hundred eleven billion, eight hundred thirteen million, three hundred twenty-seven thousand, nine hundred sixty-eight".