1223828621679 has 8 divisors (see below), whose sum is σ = 1702718082432. Its totient is φ = 780412454360.

The previous prime is 1223828621671. The next prime is 1223828621693. The reversal of 1223828621679 is 9761268283221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223828621679 - 2³ = 1223828621671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223828621671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8868323277 + ... + 8868323414.

It is an arithmetic number, because the mean of its divisors is an integer number (212839760304).

Almost surely, 2^{1223828621679} is an apocalyptic number.

1223828621679 is a deficient number, since it is larger than the sum of its proper divisors (478889460753).

1223828621679 is a wasteful number, since it uses less digits than its factorization.

1223828621679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17736646717.

The product of its digits is 6967296, while the sum is 57.

The spelling of 1223828621679 in words is "one trillion, two hundred twenty-three billion, eight hundred twenty-eight million, six hundred twenty-one thousand, six hundred seventy-nine".