28711050696 has 96 divisors (see below), whose sum is σ = 84145239360. Its totient is φ = 9154233792.

The previous prime is 28711050631. The next prime is 28711050703. The reversal of 28711050696 is 69605011782.

28711050696 is a `hidden beast` number, since 28 + 7 + 110 + 506 + 9 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276355 + ... + 365778.

It is an arithmetic number, because the mean of its divisors is an integer number (876512910).

Almost surely, 2^28711050696 is an apocalyptic number.

It is an amenable number.

28711050696 is an abundant number, since it is smaller than the sum of its proper divisors (55434188664).

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

28711050696 is a wasteful number, since it uses less digits than its factorization.

28711050696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642177 (or 642161 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 28711050696 in words is "twenty-eight billion, seven hundred eleven million, fifty thousand, six hundred ninety-six".