6451325064 has 48 divisors (see below), whose sum is σ = 17682865200. Its totient is φ = 2124530784.

The previous prime is 6451325059. The next prime is 6451325093. The reversal of 6451325064 is 4605231546.

6451325064 is a `hidden beast` number, since 64 + 513 + 25 + 0 + 64 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 533794 + ... + 545745.

It is an arithmetic number, because the mean of its divisors is an integer number (368393025).

Almost surely, 2^6451325064 is an apocalyptic number.

It is an amenable number.

6451325064 is an abundant number, since it is smaller than the sum of its proper divisors (11231540136).

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

6451325064 is a wasteful number, since it uses less digits than its factorization.

6451325064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079634 (or 1079627 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 6451325064 is about 80320.1410855335. The cubic root of 6451325064 is about 1861.5854466699.

The spelling of 6451325064 in words is "six billion, four hundred fifty-one million, three hundred twenty-five thousand, sixty-four".