1983356927964 has 36 divisors (see below), whose sum is σ = 5014965217080. Its totient is φ = 660923857440.

The previous prime is 1983356927963. The next prime is 1983356927969. The reversal of 1983356927964 is 4697296533891.

1983356927964 is a `hidden beast` number, since 1 + 9 + 8 + 33 + 569 + 27 + 9 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1983356927892 and 1983356927901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983356927963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8006242 + ... + 8250249.

Almost surely, 2^{1983356927964} is an apocalyptic number.

It is an amenable number.

1983356927964 is an abundant number, since it is smaller than the sum of its proper divisors (3031608289116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1983356927964 is a wasteful number, since it uses less digits than its factorization.

1983356927964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259890 (or 16259885 counting only the distinct ones).

The product of its digits is 529079040, while the sum is 72.

The spelling of 1983356927964 in words is "one trillion, nine hundred eighty-three billion, three hundred fifty-six million, nine hundred twenty-seven thousand, nine hundred sixty-four".