28972617086 has 8 divisors (see below), whose sum is σ = 49667343600. Its totient is φ = 12416835888.

The previous prime is 28972617073. The next prime is 28972617097. The reversal of 28972617086 is 68071627982.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034736311 + ... + 1034736338.

It is an arithmetic number, because the mean of its divisors is an integer number (6208417950).

Almost surely, 2^28972617086 is an apocalyptic number.

28972617086 is a deficient number, since it is larger than the sum of its proper divisors (20694726514).

28972617086 is a wasteful number, since it uses less digits than its factorization.

28972617086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069472658.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 28972617086 in words is "twenty-eight billion, nine hundred seventy-two million, six hundred seventeen thousand, eighty-six".