28546268668 has 24 divisors (see below), whose sum is σ = 53925490080. Its totient is φ = 13181784000.

The previous prime is 28546268651. The next prime is 28546268671. The reversal of 28546268668 is 86686264582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5347083 + ... + 5352418.

It is an arithmetic number, because the mean of its divisors is an integer number (2246895420).

Almost surely, 2^28546268668 is an apocalyptic number.

It is an amenable number.

28546268668 is a deficient number, since it is larger than the sum of its proper divisors (25379221412).

28546268668 is a wasteful number, since it uses less digits than its factorization.

28546268668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10699557 (or 10699555 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 61.

The spelling of 28546268668 in words is "twenty-eight billion, five hundred forty-six million, two hundred sixty-eight thousand, six hundred sixty-eight".