511212346252 has 6 divisors (see below), whose sum is σ = 894621605948. Its totient is φ = 255606173124.

The previous prime is 511212346243. The next prime is 511212346327. The reversal of 511212346252 is 252643212115.

It is a happy number.

It is a super-2 number, since 2×511212346252² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63901543278 + ... + 63901543285.

Almost surely, 2^511212346252 is an apocalyptic number.

It is an amenable number.

511212346252 is a deficient number, since it is larger than the sum of its proper divisors (383409259696).

511212346252 is a wasteful number, since it uses less digits than its factorization.

511212346252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127803086567 (or 127803086565 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

Adding to 511212346252 its reverse (252643212115), we get a palindrome (763855558367).

The spelling of 511212346252 in words is "five hundred eleven billion, two hundred twelve million, three hundred forty-six thousand, two hundred fifty-two".