664802028473 has 8 divisors (see below), whose sum is σ = 725248881120. Its totient is φ = 604356893280.

The previous prime is 664802028403. The next prime is 664802028503. The reversal of 664802028473 is 374820208466.

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 664802028473 - 2⁸ = 664802028217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664802028403) 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, 460133 + ... + 1241501.

It is an arithmetic number, because the mean of its divisors is an integer number (90656110140).

Almost surely, 2^664802028473 is an apocalyptic number.

It is an amenable number.

664802028473 is a deficient number, since it is larger than the sum of its proper divisors (60446852647).

664802028473 is a wasteful number, since it uses less digits than its factorization.

664802028473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858727.

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 664802028473 in words is "six hundred sixty-four billion, eight hundred two million, twenty-eight thousand, four hundred seventy-three".