511651012 has 6 divisors (see below), whose sum is σ = 895389278. Its totient is φ = 255825504.

The previous prime is 511651003. The next prime is 511651027. The reversal of 511651012 is 210156115.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 339149056 + 172501956 = 18416^2 + 13134^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63956373 + ... + 63956380.

Almost surely, 2^511651012 is an apocalyptic number.

It is an amenable number.

511651012 is a deficient number, since it is larger than the sum of its proper divisors (383738266).

511651012 is a wasteful number, since it uses less digits than its factorization.

511651012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127912757 (or 127912755 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 511651012 is about 22619.7040652613. The cubic root of 511651012 is about 799.8181941031.

The spelling of 511651012 in words is "five hundred eleven million, six hundred fifty-one thousand, twelve".