511611020382 has 64 divisors (see below), whose sum is σ = 1275918336000. Its totient is φ = 132863798880.

The previous prime is 511611020381. The next prime is 511611020399. The reversal of 511611020382 is 283020116115.

It is a super-2 number, since 2×511611020382² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511611020381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2774619 + ... + 2953257.

It is an arithmetic number, because the mean of its divisors is an integer number (19936224000).

Almost surely, 2^511611020382 is an apocalyptic number.

511611020382 is an abundant number, since it is smaller than the sum of its proper divisors (764307315618).

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

511611020382 is a wasteful number, since it uses less digits than its factorization.

511611020382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184861.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 511611020382 its reverse (283020116115), we get a palindrome (794631136497).

The spelling of 511611020382 in words is "five hundred eleven billion, six hundred eleven million, twenty thousand, three hundred eighty-two".