651000812 has 36 divisors (see below), whose sum is σ = 1431133200. Its totient is φ = 253635360.

The previous prime is 651000769. The next prime is 651000859. The reversal of 651000812 is 218000156.

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 in 11 ways as a sum of consecutive naturals, for example, 92687 + ... + 99462.

It is an arithmetic number, because the mean of its divisors is an integer number (39753700).

Almost surely, 2^651000812 is an apocalyptic number.

It is an amenable number.

651000812 is an abundant number, since it is smaller than the sum of its proper divisors (780132388).

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

651000812 is a wasteful number, since it uses less digits than its factorization.

651000812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192182 (or 192169 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 651000812 is about 25514.7175567358. The cubic root of 651000812 is about 866.6834632511.

Adding to 651000812 its reverse (218000156), we get a palindrome (869000968).

The spelling of 651000812 in words is "six hundred fifty-one million, eight hundred twelve", and thus it is an aban number.