1983629449269 has 48 divisors (see below), whose sum is σ = 3169447411312. Its totient is φ = 1187551217664.

The previous prime is 1983629449261. The next prime is 1983629449271. The reversal of 1983629449269 is 9629449263891.

1983629449269 is a `hidden beast` number, since 1 + 9 + 8 + 36 + 294 + 49 + 269 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 273126438225 + 1710503011044 = 522615^2 + 1307862^2 .

It is not a de Polignac number, because 1983629449269 - 2³ = 1983629449261 is a prime.

It is a super-2 number, since 2×1983629449269² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1983629449197 and 1983629449206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983629449261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40135437 + ... + 40184829.

Almost surely, 2^{1983629449269} is an apocalyptic number.

It is an amenable number.

1983629449269 is a deficient number, since it is larger than the sum of its proper divisors (1185817962043).

1983629449269 is a wasteful number, since it uses less digits than its factorization.

1983629449269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58726 (or 58723 counting only the distinct ones).

The product of its digits is 362797056, while the sum is 72.

The spelling of 1983629449269 in words is "one trillion, nine hundred eighty-three billion, six hundred twenty-nine million, four hundred forty-nine thousand, two hundred sixty-nine".