8064646477 has 4 divisors (see below), whose sum is σ = 8064892960. Its totient is φ = 8064399996.

The previous prime is 8064646451. The next prime is 8064646493. The reversal of 8064646477 is 7746464608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8064646477 - 2¹⁵ = 8064613709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8064644477) 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 3 ways as a sum of consecutive naturals, for example, 64983 + ... + 142660.

It is an arithmetic number, because the mean of its divisors is an integer number (2016223240).

Almost surely, 2^8064646477 is an apocalyptic number.

It is an amenable number.

8064646477 is a deficient number, since it is larger than the sum of its proper divisors (246483).

8064646477 is a wasteful number, since it uses less digits than its factorization.

8064646477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246482.

The product of its (nonzero) digits is 5419008, while the sum is 52.

The square root of 8064646477 is about 89803.3767572244. The cubic root of 8064646477 is about 2005.3727602161.

The spelling of 8064646477 in words is "eight billion, sixty-four million, six hundred forty-six thousand, four hundred seventy-seven".