28545865142258 has 16 divisors (see below), whose sum is σ = 43789987148544. Its totient is φ = 13950038192640.

The previous prime is 28545865142239. The next prime is 28545865142261. The reversal of 28545865142258 is 85224156854582.

It is a junction number, because it is equal to n+sod(n) for n = 28545865142194 and 28545865142203.

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, 208789583 + ... + 208926258.

It is an arithmetic number, because the mean of its divisors is an integer number (2736874196784).

Almost surely, 2^{28545865142258} is an apocalyptic number.

28545865142258 is a deficient number, since it is larger than the sum of its proper divisors (15244122006286).

28545865142258 is a wasteful number, since it uses less digits than its factorization.

28545865142258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417716617.

The product of its digits is 245760000, while the sum is 65.

The spelling of 28545865142258 in words is "twenty-eight trillion, five hundred forty-five billion, eight hundred sixty-five million, one hundred forty-two thousand, two hundred fifty-eight".