7869669687 has 24 divisors (see below), whose sum is σ = 12427663248. Its totient is φ = 4759123200.

The previous prime is 7869669623. The next prime is 7869669697.

7869669687 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7869669687 - 2⁶ = 7869669623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7869669697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40578 + ... + 131855.

It is an arithmetic number, because the mean of its divisors is an integer number (517819302).

Almost surely, 2^7869669687 is an apocalyptic number.

7869669687 is a deficient number, since it is larger than the sum of its proper divisors (4557993561).

7869669687 is a wasteful number, since it uses less digits than its factorization.

7869669687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172911 (or 172908 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 72.

The square root of 7869669687 is about 88711.1587513093. The cubic root of 7869669687 is about 1989.0796217786.

The spelling of 7869669687 in words is "seven billion, eight hundred sixty-nine million, six hundred sixty-nine thousand, six hundred eighty-seven".