1084863989553 has 16 divisors (see below), whose sum is σ = 1447238016000. Its totient is φ = 722866423760.

The previous prime is 1084863989543. The next prime is 1084863989557. The reversal of 1084863989553 is 3559893684801.

It is a cyclic number.

It is not a de Polignac number, because 1084863989553 - 2¹³ = 1084863981361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1084863989557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56145628 + ... + 56164946.

It is an arithmetic number, because the mean of its divisors is an integer number (90452376000).

Almost surely, 2^{1084863989553} is an apocalyptic number.

It is an amenable number.

1084863989553 is a deficient number, since it is larger than the sum of its proper divisors (362374026447).

1084863989553 is a wasteful number, since it uses less digits than its factorization.

1084863989553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28092.

The product of its (nonzero) digits is 223948800, while the sum is 69.

The spelling of 1084863989553 in words is "one trillion, eighty-four billion, eight hundred sixty-three million, nine hundred eighty-nine thousand, five hundred fifty-three".