1611285044863 has 16 divisors (see below), whose sum is σ = 1776777117696. Its totient is φ = 1451893528800.

The previous prime is 1611285044851. The next prime is 1611285044879. The reversal of 1611285044863 is 3684405821161.

It is a de Polignac number, because none of the positive numbers 2^k-1611285044863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611285044843) 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, 3208713 + ... + 3676738.

It is an arithmetic number, because the mean of its divisors is an integer number (111048569856).

Almost surely, 2^{1611285044863} is an apocalyptic number.

1611285044863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1611285044863 is a deficient number, since it is larger than the sum of its proper divisors (165492072833).

1611285044863 is a wasteful number, since it uses less digits than its factorization.

1611285044863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885894.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 1611285044863 in words is "one trillion, six hundred eleven billion, two hundred eighty-five million, forty-four thousand, eight hundred sixty-three".