773403043040021 has 8 divisors (see below), whose sum is σ = 818898198209280. Its totient is φ = 727907983261888.

The previous prime is 773403043040011. The next prime is 773403043040027. The reversal of 773403043040021 is 120040340304377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 773403043040021 - 2³⁰ = 773401969298197 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 (773403043040027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6807551 + ... + 39914268.

It is an arithmetic number, because the mean of its divisors is an integer number (102362274776160).

Almost surely, 2^{773403043040021} is an apocalyptic number.

It is an amenable number.

773403043040021 is a deficient number, since it is larger than the sum of its proper divisors (45495155169259).

773403043040021 is a wasteful number, since it uses less digits than its factorization.

773403043040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47695563.

The product of its (nonzero) digits is 169344, while the sum is 38.

Adding to 773403043040021 its reverse (120040340304377), we get a palindrome (893443383344398).

The spelling of 773403043040021 in words is "seven hundred seventy-three trillion, four hundred three billion, forty-three million, forty thousand, twenty-one".