28258208366155 has 8 divisors (see below), whose sum is σ = 33909949517184. Its totient is φ = 22606500374400.

The previous prime is 28258208366153. The next prime is 28258208366159. The reversal of 28258208366155 is 55166380285282.

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

It is not a de Polignac number, because 28258208366155 - 2¹ = 28258208366153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28258208366093 and 28258208366102.

It is not an unprimeable number, because it can be changed into a prime (28258208366153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6374766 + ... + 9856675.

It is an arithmetic number, because the mean of its divisors is an integer number (4238743689648).

Almost surely, 2^{28258208366155} is an apocalyptic number.

28258208366155 is a deficient number, since it is larger than the sum of its proper divisors (5651741151029).

28258208366155 is a wasteful number, since it uses less digits than its factorization.

28258208366155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16579637.

The product of its (nonzero) digits is 55296000, while the sum is 61.

The spelling of 28258208366155 in words is "twenty-eight trillion, two hundred fifty-eight billion, two hundred eight million, three hundred sixty-six thousand, one hundred fifty-five".