651034368 has 144 divisors (see below), whose sum is σ = 1942617600. Its totient is φ = 215055360.

The previous prime is 651034357. The next prime is 651034421. The reversal of 651034368 is 863430156.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 905113 + ... + 905831.

It is an arithmetic number, because the mean of its divisors is an integer number (13490400).

Almost surely, 2^651034368 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 651034368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971308800).

651034368 is an abundant number, since it is smaller than the sum of its proper divisors (1291583232).

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

651034368 is a wasteful number, since it uses less digits than its factorization.

651034368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 651034368 is about 25515.3751295175. The cubic root of 651034368 is about 866.6983541340.

The spelling of 651034368 in words is "six hundred fifty-one million, thirty-four thousand, three hundred sixty-eight".