651344612 has 12 divisors (see below), whose sum is σ = 1164105600. Its totient is φ = 318743016.

The previous prime is 651344597. The next prime is 651344653. The reversal of 651344612 is 216443156.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1732112 + ... + 1732487.

It is an arithmetic number, because the mean of its divisors is an integer number (97008800).

Almost surely, 2^651344612 is an apocalyptic number.

It is an amenable number.

651344612 is a deficient number, since it is larger than the sum of its proper divisors (512760988).

651344612 is a wasteful number, since it uses less digits than its factorization.

651344612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464650 (or 3464648 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 651344612 is about 25521.4539554470. The cubic root of 651344612 is about 866.8360044521.

Adding to 651344612 its reverse (216443156), we get a palindrome (867787768).

The spelling of 651344612 in words is "six hundred fifty-one million, three hundred forty-four thousand, six hundred twelve".