493888861111111 has 4 divisors (see below), whose sum is σ = 493888916551824. Its totient is φ = 493888805670400.

The previous prime is 493888861111099. The next prime is 493888861111123. The reversal of 493888861111111 is 111111168888394.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (493888861111099) and next prime (493888861111123).

It is a cyclic number.

It is not a de Polignac number, because 493888861111111 - 2²¹ = 493888859013959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493888861111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493888861111171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10993210 + ... + 33296071.

It is an arithmetic number, because the mean of its divisors is an integer number (123472229137956).

Almost surely, 2^{493888861111111} is an apocalyptic number.

493888861111111 is a deficient number, since it is larger than the sum of its proper divisors (55440713).

493888861111111 is a wasteful number, since it uses less digits than its factorization.

493888861111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55440712.

The product of its digits is 2654208, while the sum is 61.

The spelling of 493888861111111 in words is "four hundred ninety-three trillion, eight hundred eighty-eight billion, eight hundred sixty-one million, one hundred eleven thousand, one hundred eleven".