1081863804617 has 16 divisors (see below), whose sum is σ = 1179693649920. Its totient is φ = 988356589200.

The previous prime is 1081863804607. The next prime is 1081863804643. The reversal of 1081863804617 is 7164083681801.

It is a cyclic number.

It is not a de Polignac number, because 1081863804617 - 2⁴ = 1081863804601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081863804607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3078509 + ... + 3411882.

It is an arithmetic number, because the mean of its divisors is an integer number (73730853120).

Almost surely, 2^{1081863804617} is an apocalyptic number.

It is an amenable number.

1081863804617 is a deficient number, since it is larger than the sum of its proper divisors (97829845303).

1081863804617 is a wasteful number, since it uses less digits than its factorization.

1081863804617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490724.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 1081863804617 in words is "one trillion, eighty-one billion, eight hundred sixty-three million, eight hundred four thousand, six hundred seventeen".