28646618376 has 32 divisors (see below), whose sum is σ = 71781968160. Its totient is φ = 9526816512.

The previous prime is 28646618347. The next prime is 28646618387. The reversal of 28646618376 is 67381664682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367910 + ... + 1388693.

It is an arithmetic number, because the mean of its divisors is an integer number (2243186505).

Almost surely, 2^28646618376 is an apocalyptic number.

It is an amenable number.

28646618376 is an abundant number, since it is smaller than the sum of its proper divisors (43135349784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28646618376 is a wasteful number, since it uses less digits than its factorization.

28646618376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757045 (or 2757041 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 28646618376 in words is "twenty-eight billion, six hundred forty-six million, six hundred eighteen thousand, three hundred seventy-six".