511069357786968 has 48 divisors (see below), whose sum is σ = 1384150441624080. Its totient is φ = 170355927760704.

The previous prime is 511069357786963. The next prime is 511069357787083. The reversal of 511069357786968 is 869687753960115.

511069357786968 is a `hidden beast` number, since 5 + 1 + 106 + 9 + 357 + 78 + 6 + 96 + 8 = 666.

It is a super-2 number, since 2×511069357786968² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511069357786963) 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 11 ways as a sum of consecutive naturals, for example, 12958821 + ... + 34497387.

It is an arithmetic number, because the mean of its divisors is an integer number (28836467533835).

Almost surely, 2^{511069357786968} is an apocalyptic number.

It is an amenable number.

511069357786968 is an abundant number, since it is smaller than the sum of its proper divisors (873081083837112).

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

511069357786968 is a wasteful number, since it uses less digits than its factorization.

511069357786968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21868136 (or 21868129 counting only the distinct ones).

The product of its (nonzero) digits is 4115059200, while the sum is 81.

The spelling of 511069357786968 in words is "five hundred eleven trillion, sixty-nine billion, three hundred fifty-seven million, seven hundred eighty-six thousand, nine hundred sixty-eight".