677433328993 has 4 divisors (see below), whose sum is σ = 677435032260. Its totient is φ = 677431625728.

The previous prime is 677433328981. The next prime is 677433329033. The reversal of 677433328993 is 399823334776.

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 208198738944 + 469234590049 = 456288^2 + 685007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677433328993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677433328903) 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, 97713 + ... + 1168081.

It is an arithmetic number, because the mean of its divisors is an integer number (169358758065).

Almost surely, 2^677433328993 is an apocalyptic number.

It is an amenable number.

677433328993 is a deficient number, since it is larger than the sum of its proper divisors (1703267).

677433328993 is a wasteful number, since it uses less digits than its factorization.

677433328993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703266.

The product of its digits is 123451776, while the sum is 64.

The spelling of 677433328993 in words is "six hundred seventy-seven billion, four hundred thirty-three million, three hundred twenty-eight thousand, nine hundred ninety-three".