28682668424 has 16 divisors (see below), whose sum is σ = 53874197520. Its totient is φ = 14316215760.

The previous prime is 28682668411. The next prime is 28682668429. The reversal of 28682668424 is 42486628682.

It is a super-2 number, since 2×28682668424² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28682668424.

It is not an unprimeable number, because it can be changed into a prime (28682668429) 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, 3134954 + ... + 3144089.

It is an arithmetic number, because the mean of its divisors is an integer number (3367137345).

Almost surely, 2^28682668424 is an apocalyptic number.

It is an amenable number.

28682668424 is a deficient number, since it is larger than the sum of its proper divisors (25191529096).

28682668424 is a wasteful number, since it uses less digits than its factorization.

28682668424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279620 (or 6279616 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 56.

The spelling of 28682668424 in words is "twenty-eight billion, six hundred eighty-two million, six hundred sixty-eight thousand, four hundred twenty-four".