1968824356021 has 8 divisors (see below), whose sum is σ = 2084692757760. Its totient is φ = 1852962088128.

The previous prime is 1968824356003. The next prime is 1968824356061. The reversal of 1968824356021 is 1206534288691.

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 1968824356021 - 2¹⁵ = 1968824323253 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 (1968824356061) 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, 864271 + ... + 2164396.

It is an arithmetic number, because the mean of its divisors is an integer number (260586594720).

Almost surely, 2^{1968824356021} is an apocalyptic number.

It is an amenable number.

1968824356021 is a deficient number, since it is larger than the sum of its proper divisors (115868401739).

1968824356021 is a wasteful number, since it uses less digits than its factorization.

1968824356021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066923.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 1968824356021 in words is "one trillion, nine hundred sixty-eight billion, eight hundred twenty-four million, three hundred fifty-six thousand, twenty-one".