651487360 has 64 divisors (see below), whose sum is σ = 1572742080. Its totient is φ = 258038784.

The previous prime is 651487313. The next prime is 651487373. The reversal of 651487360 is 63784156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60979 + ... + 70861.

It is an arithmetic number, because the mean of its divisors is an integer number (24574095).

Almost surely, 2^651487360 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 651487360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786371040).

651487360 is an abundant number, since it is smaller than the sum of its proper divisors (921254720).

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

651487360 is a wasteful number, since it uses less digits than its factorization.

651487360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005 (or 9993 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 651487360 is about 25524.2504297384. The cubic root of 651487360 is about 866.8993247822.

The spelling of 651487360 in words is "six hundred fifty-one million, four hundred eighty-seven thousand, three hundred sixty".