511512834 has 64 divisors (see below), whose sum is σ = 1222410240. Its totient is φ = 139613760.

The previous prime is 511512829. The next prime is 511512839. The reversal of 511512834 is 438215115.

It is an interprime number because it is at equal distance from previous prime (511512829) and next prime (511512839).

It is not an unprimeable number, because it can be changed into a prime (511512839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100372 + ... + 105344.

It is an arithmetic number, because the mean of its divisors is an integer number (19100160).

Almost surely, 2^511512834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 511512834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611205120).

511512834 is an abundant number, since it is smaller than the sum of its proper divisors (710897406).

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

511512834 is a wasteful number, since it uses less digits than its factorization.

511512834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5095.

The product of its digits is 4800, while the sum is 30.

The square root of 511512834 is about 22616.6494866061. The cubic root of 511512834 is about 799.7461871907.

Adding to 511512834 its reverse (438215115), we get a palindrome (949727949).

The spelling of 511512834 in words is "five hundred eleven million, five hundred twelve thousand, eight hundred thirty-four".