28736347855 has 8 divisors (see below), whose sum is σ = 34715052000. Its totient is φ = 22834788576.

The previous prime is 28736347807. The next prime is 28736347883. The reversal of 28736347855 is 55874363782.

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

It is a cyclic number.

It is not a de Polignac number, because 28736347855 - 2¹³ = 28736339663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28736347855.

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, 19285395 + ... + 19286884.

It is an arithmetic number, because the mean of its divisors is an integer number (4339381500).

Almost surely, 2^28736347855 is an apocalyptic number.

28736347855 is a deficient number, since it is larger than the sum of its proper divisors (5978704145).

28736347855 is a wasteful number, since it uses less digits than its factorization.

28736347855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38572433.

The product of its digits is 33868800, while the sum is 58.

The spelling of 28736347855 in words is "twenty-eight billion, seven hundred thirty-six million, three hundred forty-seven thousand, eight hundred fifty-five".