651745472 has 84 divisors (see below), whose sum is σ = 1529571744. Its totient is φ = 274659840.

The previous prime is 651745433. The next prime is 651745477. The reversal of 651745472 is 274547156.

It is not an unprimeable number, because it can be changed into a prime (651745477) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 189593 + ... + 192999.

Almost surely, 2^651745472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651745472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764785872).

651745472 is an abundant number, since it is smaller than the sum of its proper divisors (877826272).

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

651745472 is a wasteful number, since it uses less digits than its factorization.

651745472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494 (or 3477 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 651745472 is about 25529.3061401990. The cubic root of 651745472 is about 867.0137949360.

The spelling of 651745472 in words is "six hundred fifty-one million, seven hundred forty-five thousand, four hundred seventy-two".