28708952086 has 8 divisors (see below), whose sum is σ = 43392156984. Its totient is φ = 14244899760.

The previous prime is 28708952059. The next prime is 28708952089. The reversal of 28708952086 is 68025980782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28708952089) 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, 54787815 + ... + 54788338.

It is an arithmetic number, because the mean of its divisors is an integer number (5424019623).

Almost surely, 2^28708952086 is an apocalyptic number.

28708952086 is a deficient number, since it is larger than the sum of its proper divisors (14683204898).

28708952086 is a wasteful number, since it uses less digits than its factorization.

28708952086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109576286.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 28708952086 in words is "twenty-eight billion, seven hundred eight million, nine hundred fifty-two thousand, eighty-six".