4611766681887 has 4 divisors (see below), whose sum is σ = 6149022242520. Its totient is φ = 3074511121256.

The previous prime is 4611766681877. The next prime is 4611766681897. The reversal of 4611766681887 is 7881866671164.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4611766681877) and next prime (4611766681897).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4611766681887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4611766681877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768627780312 + ... + 768627780317.

It is an arithmetic number, because the mean of its divisors is an integer number (1537255560630).

Almost surely, 2^{4611766681887} is an apocalyptic number.

4611766681887 is a deficient number, since it is larger than the sum of its proper divisors (1537255560633).

4611766681887 is a wasteful number, since it uses less digits than its factorization.

4611766681887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537255560632.

The product of its digits is 130056192, while the sum is 69.

The spelling of 4611766681887 in words is "four trillion, six hundred eleven billion, seven hundred sixty-six million, six hundred eighty-one thousand, eight hundred eighty-seven".