1983754826563 has 8 divisors (see below), whose sum is σ = 2076884989200. Its totient is φ = 1892272985568.

The previous prime is 1983754826561. The next prime is 1983754826593. The reversal of 1983754826563 is 3656284573891.

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 1983754826563 - 2¹ = 1983754826561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1983754826561) 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, 412077948 + ... + 412082761.

It is an arithmetic number, because the mean of its divisors is an integer number (259610623650).

Almost surely, 2^{1983754826563} is an apocalyptic number.

1983754826563 is a deficient number, since it is larger than the sum of its proper divisors (93130162637).

1983754826563 is an equidigital number, since it uses as much as digits as its factorization.

1983754826563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824160821.

The product of its digits is 261273600, while the sum is 67.

The spelling of 1983754826563 in words is "one trillion, nine hundred eighty-three billion, seven hundred fifty-four million, eight hundred twenty-six thousand, five hundred sixty-three".