511216712 has 32 divisors (see below), whose sum is σ = 973879200. Its totient is φ = 251543424.

The previous prime is 511216703. The next prime is 511216721. The reversal of 511216712 is 217612115.

It is an interprime number because it is at equal distance from previous prime (511216703) and next prime (511216721).

It is a super-2 number, since 2×511216712² = 522685053256181888, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 160043 + ... + 163205.

It is an arithmetic number, because the mean of its divisors is an integer number (30433725).

Almost surely, 2^511216712 is an apocalyptic number.

It is an amenable number.

511216712 is a deficient number, since it is larger than the sum of its proper divisors (462662488).

511216712 is a wasteful number, since it uses less digits than its factorization.

511216712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3481 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

The square root of 511216712 is about 22610.1019900398. The cubic root of 511216712 is about 799.5918292812.

Adding to 511216712 its reverse (217612115), we get a palindrome (728828827).

The spelling of 511216712 in words is "five hundred eleven million, two hundred sixteen thousand, seven hundred twelve".