651497472 has 208 divisors, whose sum is σ = 1989430080. Its totient is φ = 210567168.

The previous prime is 651497467. The next prime is 651497521. The reversal of 651497472 is 274794156.

651497472 is a `hidden beast` number, since 6 + 514 + 97 + 47 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4755388 + ... + 4755524.

Almost surely, 2^651497472 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 651497472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994715040).

651497472 is an abundant number, since it is smaller than the sum of its proper divisors (1337932608).

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

651497472 is a wasteful number, since it uses less digits than its factorization.

651497472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 185 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 651497472 is about 25524.4485151002. The cubic root of 651497472 is about 866.9038099245.

The spelling of 651497472 in words is "six hundred fifty-one million, four hundred ninety-seven thousand, four hundred seventy-two".