28426506862105 has 16 divisors (see below), whose sum is σ = 37301695300800. Its totient is φ = 20624482288960.

The previous prime is 28426506862099. The next prime is 28426506862111. The reversal of 28426506862105 is 50126860562482.

It is an interprime number because it is at equal distance from previous prime (28426506862099) and next prime (28426506862111).

It is not a de Polignac number, because 28426506862105 - 2³ = 28426506862097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616737790 + ... + 616783879.

It is an arithmetic number, because the mean of its divisors is an integer number (2331355956300).

Almost surely, 2^{28426506862105} is an apocalyptic number.

It is an amenable number.

28426506862105 is a deficient number, since it is larger than the sum of its proper divisors (8875188438695).

28426506862105 is a wasteful number, since it uses less digits than its factorization.

28426506862105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233522104.

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 28426506862105 in words is "twenty-eight trillion, four hundred twenty-six billion, five hundred six million, eight hundred sixty-two thousand, one hundred five".