28340027258 has 16 divisors (see below), whose sum is σ = 44752319520. Its totient is φ = 13422751056.

The previous prime is 28340027173. The next prime is 28340027263. The reversal of 28340027258 is 85272004382.

It is a happy 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, 361541 + ... + 432887.

It is an arithmetic number, because the mean of its divisors is an integer number (2797019970).

Almost surely, 2^28340027258 is an apocalyptic number.

28340027258 is a deficient number, since it is larger than the sum of its proper divisors (16412292262).

28340027258 is a wasteful number, since it uses less digits than its factorization.

28340027258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81821.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 28340027258 in words is "twenty-eight billion, three hundred forty million, twenty-seven thousand, two hundred fifty-eight".