69687878696 has 16 divisors (see below), whose sum is σ = 130677910740. Its totient is φ = 34840435840.

The previous prime is 69687878693. The next prime is 69687878747.

69687878696 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 68009337796 + 1678540900 = 260786^2 + 40970^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 69687878696.

It is not an unprimeable number, because it can be changed into a prime (69687878693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352421 + ... + 513396.

Almost surely, 2^69687878696 is an apocalyptic number.

It is an amenable number.

69687878696 is a deficient number, since it is larger than the sum of its proper divisors (60990032044).

69687878696 is a wasteful number, since it uses less digits than its factorization.

69687878696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875884 (or 875880 counting only the distinct ones).

The product of its digits is 2633637888, while the sum is 80.

The spelling of 69687878696 in words is "sixty-nine billion, six hundred eighty-seven million, eight hundred seventy-eight thousand, six hundred ninety-six".