1982356475969 has 8 divisors (see below), whose sum is σ = 2050768686720. Its totient is φ = 1913947938000.

The previous prime is 1982356475927. The next prime is 1982356476013. The reversal of 1982356475969 is 9695746532891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1982356475969 is a prime.

It is a super-2 number, since 2×1982356475969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1982356475896 and 1982356475905.

It is not an unprimeable number, because it can be changed into a prime (1982356415969) 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 7 ways as a sum of consecutive naturals, for example, 203144 + ... + 2001494.

It is an arithmetic number, because the mean of its divisors is an integer number (256346085840).

Almost surely, 2^{1982356475969} is an apocalyptic number.

It is an amenable number.

1982356475969 is a deficient number, since it is larger than the sum of its proper divisors (68412210751).

1982356475969 is a wasteful number, since it uses less digits than its factorization.

1982356475969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836391.

The product of its digits is 881798400, while the sum is 74.

The spelling of 1982356475969 in words is "one trillion, nine hundred eighty-two billion, three hundred fifty-six million, four hundred seventy-five thousand, nine hundred sixty-nine".