64197466673 has 8 divisors (see below), whose sum is σ = 68325987528. Its totient is φ = 60108079104.

The previous prime is 64197466657. The next prime is 64197466717. The reversal of 64197466673 is 37666479146.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9977412769 + 54220053904 = 99887^2 + 232852^2 .

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 64197466673 - 2⁴ = 64197466657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64197466603) 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, 9779936 + ... + 9786497.

It is an arithmetic number, because the mean of its divisors is an integer number (8540748441).

Almost surely, 2^64197466673 is an apocalyptic number.

It is an amenable number.

64197466673 is a deficient number, since it is larger than the sum of its proper divisors (4128520855).

64197466673 is a wasteful number, since it uses less digits than its factorization.

64197466673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19566643.

The product of its digits is 27433728, while the sum is 59.

The spelling of 64197466673 in words is "sixty-four billion, one hundred ninety-seven million, four hundred sixty-six thousand, six hundred seventy-three".