6464831120651 has 16 divisors (see below), whose sum is σ = 6659556969600. Its totient is φ = 6271167795840.

The previous prime is 6464831120647. The next prime is 6464831120663. The reversal of 6464831120651 is 1560211384646.

It is a cyclic number.

It is not a de Polignac number, because 6464831120651 - 2² = 6464831120647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6464831120596 and 6464831120605.

It is not an unprimeable number, because it can be changed into a prime (6464831120611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48559925 + ... + 48692873.

It is an arithmetic number, because the mean of its divisors is an integer number (416222310600).

Almost surely, 2^{6464831120651} is an apocalyptic number.

6464831120651 is a deficient number, since it is larger than the sum of its proper divisors (194725848949).

6464831120651 is a wasteful number, since it uses less digits than its factorization.

6464831120651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136934.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 6464831120651 in words is "six trillion, four hundred sixty-four billion, eight hundred thirty-one million, one hundred twenty thousand, six hundred fifty-one".