7868228687 has 16 divisors (see below), whose sum is σ = 8771341824. Its totient is φ = 6996600000.

The previous prime is 7868228663. The next prime is 7868228717.

7868228687 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7868228687 - 2¹⁰ = 7868227663 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 (7868228647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160387 + ... + 1167147.

It is an arithmetic number, because the mean of its divisors is an integer number (548208864).

Almost surely, 2^7868228687 is an apocalyptic number.

7868228687 is a deficient number, since it is larger than the sum of its proper divisors (903113137).

7868228687 is a wasteful number, since it uses less digits than its factorization.

7868228687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9070.

The product of its digits is 28901376, while the sum is 62.

The square root of 7868228687 is about 88703.0365151047. The cubic root of 7868228687 is about 1988.9582088599.

The spelling of 7868228687 in words is "seven billion, eight hundred sixty-eight million, two hundred twenty-eight thousand, six hundred eighty-seven".