7854668863 has 4 divisors (see below), whose sum is σ = 7930927888. Its totient is φ = 7778409840.

The previous prime is 7854668827. The next prime is 7854668881. The reversal of 7854668863 is 3688664587.

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

It is a cyclic number.

It is not a de Polignac number, because 7854668863 - 2⁹ = 7854668351 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 (7854668893) 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, 38129358 + ... + 38129563.

It is an arithmetic number, because the mean of its divisors is an integer number (1982731972).

Almost surely, 2^7854668863 is an apocalyptic number.

7854668863 is a deficient number, since it is larger than the sum of its proper divisors (76259025).

7854668863 is a wasteful number, since it uses less digits than its factorization.

7854668863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76259024.

The product of its digits is 46448640, while the sum is 61.

The square root of 7854668863 is about 88626.5697350405. The cubic root of 7854668863 is about 1987.8149853899.

The spelling of 7854668863 in words is "seven billion, eight hundred fifty-four million, six hundred sixty-eight thousand, eight hundred sixty-three".