800668033477 has 4 divisors (see below), whose sum is σ = 862257882220. Its totient is φ = 739078184736.

The previous prime is 800668033453. The next prime is 800668033499. The reversal of 800668033477 is 774330866008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 348419853441 + 452248180036 = 590271^2 + 672494^2 .

It is a cyclic number.

It is not a de Polignac number, because 800668033477 - 2²⁷ = 800533815749 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 (800668033427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30794924352 + ... + 30794924377.

It is an arithmetic number, because the mean of its divisors is an integer number (215564470555).

Almost surely, 2^800668033477 is an apocalyptic number.

It is an amenable number.

800668033477 is a deficient number, since it is larger than the sum of its proper divisors (61589848743).

800668033477 is a wasteful number, since it uses less digits than its factorization.

800668033477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61589848742.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 800668033477 in words is "eight hundred billion, six hundred sixty-eight million, thirty-three thousand, four hundred seventy-seven".