8466620819 has 8 divisors (see below), whose sum is σ = 8569280880. Its totient is φ = 8364128256.

The previous prime is 8466620777. The next prime is 8466620821. The reversal of 8466620819 is 9180266648.

It is a happy number.

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 8466620819 - 2²⁴ = 8449843603 is a prime.

It is a super-2 number, since 2×8466620819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8466620849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61364 + ... + 143870.

It is an arithmetic number, because the mean of its divisors is an integer number (1071160110).

Almost surely, 2^8466620819 is an apocalyptic number.

8466620819 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

8466620819 is a deficient number, since it is larger than the sum of its proper divisors (102660061).

8466620819 is a wasteful number, since it uses less digits than its factorization.

8466620819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83749.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 8466620819 is about 92014.2424790858. The cubic root of 8466620819 is about 2038.1526287235.

The spelling of 8466620819 in words is "eight billion, four hundred sixty-six million, six hundred twenty thousand, eight hundred nineteen".