6451700064 has 96 divisors (see below), whose sum is σ = 17993495520. Its totient is φ = 2020257792.

The previous prime is 6451700029. The next prime is 6451700111. The reversal of 6451700064 is 4600071546.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 6451699998 and 6451700034.

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, 71692 + ... + 134324.

It is an arithmetic number, because the mean of its divisors is an integer number (187432245).

Almost surely, 2^6451700064 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 6451700064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8996747760).

6451700064 is an abundant number, since it is smaller than the sum of its proper divisors (11541795456).

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

6451700064 is a wasteful number, since it uses less digits than its factorization.

6451700064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62712 (or 62704 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6451700064 is about 80322.4754598612. The cubic root of 6451700064 is about 1861.6215157983.

The spelling of 6451700064 in words is "six billion, four hundred fifty-one million, seven hundred thousand, sixty-four".