6464143464551 has 8 divisors (see below), whose sum is σ = 6853006498944. Its totient is φ = 6086551822560.

The previous prime is 6464143464521. The next prime is 6464143464599. The reversal of 6464143464551 is 1554643414646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6464143464551 - 2¹⁴ = 6464143448167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6464143464493 and 6464143464502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464143464521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2817846920 + ... + 2817849213.

It is an arithmetic number, because the mean of its divisors is an integer number (856625812368).

Almost surely, 2^{6464143464551} is an apocalyptic number.

6464143464551 is a deficient number, since it is larger than the sum of its proper divisors (388863034393).

6464143464551 is a wasteful number, since it uses less digits than its factorization.

6464143464551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635696201.

The product of its digits is 16588800, while the sum is 53.

The spelling of 6464143464551 in words is "six trillion, four hundred sixty-four billion, one hundred forty-three million, four hundred sixty-four thousand, five hundred fifty-one".