1083533863778 has 64 divisors (see below), whose sum is σ = 1722046435200. Its totient is φ = 510559096320.

The previous prime is 1083533863759. The next prime is 1083533863799. The reversal of 1083533863778 is 8773683353801.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1083533863778.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580360001 + ... + 580361867.

It is an arithmetic number, because the mean of its divisors is an integer number (26906975550).

Almost surely, 2^{1083533863778} is an apocalyptic number.

1083533863778 is a deficient number, since it is larger than the sum of its proper divisors (638512571422).

1083533863778 is a wasteful number, since it uses less digits than its factorization.

1083533863778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 1083533863778 in words is "one trillion, eighty-three billion, five hundred thirty-three million, eight hundred sixty-three thousand, seven hundred seventy-eight".