1083553638786 has 12 divisors (see below), whose sum is σ = 2347699550742. Its totient is φ = 361184546256.

The previous prime is 1083553638737. The next prime is 1083553638829. The reversal of 1083553638786 is 6878363553801.

It is a happy number.

1083553638786 is a `hidden beast` number, since 1 + 0 + 8 + 3 + 553 + 6 + 3 + 8 + 78 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1037201701761 + 46351937025 = 1018431^2 + 215295^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30098712171 + ... + 30098712206.

Almost surely, 2^{1083553638786} is an apocalyptic number.

1083553638786 is an abundant number, since it is smaller than the sum of its proper divisors (1264145911956).

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

1083553638786 is a wasteful number, since it uses less digits than its factorization.

1083553638786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60197424385 (or 60197424382 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 1083553638786 in words is "one trillion, eighty-three billion, five hundred fifty-three million, six hundred thirty-eight thousand, seven hundred eighty-six".