7941566887 has 8 divisors (see below), whose sum is σ = 8206774272. Its totient is φ = 7676923800.

The previous prime is 7941566863. The next prime is 7941566909. The reversal of 7941566887 is 7886651497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7941566887 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 (7941566827) 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 7 ways as a sum of consecutive naturals, for example, 112363 + ... + 168844.

It is an arithmetic number, because the mean of its divisors is an integer number (1025846784).

Almost surely, 2^7941566887 is an apocalyptic number.

7941566887 is a deficient number, since it is larger than the sum of its proper divisors (265207385).

7941566887 is a wasteful number, since it uses less digits than its factorization.

7941566887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282149.

The product of its digits is 20321280, while the sum is 61.

The square root of 7941566887 is about 89115.4694034655. The cubic root of 7941566887 is about 1995.1186699174.

The spelling of 7941566887 in words is "seven billion, nine hundred forty-one million, five hundred sixty-six thousand, eight hundred eighty-seven".