1677821121226 has 8 divisors (see below), whose sum is σ = 2535101986500. Its totient is φ = 832787125728.

The previous prime is 1677821121191. The next prime is 1677821121227. The reversal of 1677821121226 is 6221211287761.

It can be written as a sum of positive squares in 2 ways, for example, as 1658081152225 + 19739969001 = 1287665^2 + 140499^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1677821121227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3061717101 + ... + 3061717648.

Almost surely, 2^{1677821121226} is an apocalyptic number.

1677821121226 is a deficient number, since it is larger than the sum of its proper divisors (857280865274).

1677821121226 is a wasteful number, since it uses less digits than its factorization.

1677821121226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123434888.

The product of its digits is 225792, while the sum is 46.

The spelling of 1677821121226 in words is "one trillion, six hundred seventy-seven billion, eight hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-six".