28100000258 has 16 divisors (see below), whose sum is σ = 48401915040. Its totient is φ = 12100478400.

The previous prime is 28100000233. The next prime is 28100000287. The reversal of 28100000258 is 85200000182.

It is a super-2 number, since 2×28100000258² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33612023 + ... + 33612858.

It is an arithmetic number, because the mean of its divisors is an integer number (3025119690).

Almost surely, 2^28100000258 is an apocalyptic number.

28100000258 is a deficient number, since it is larger than the sum of its proper divisors (20301914782).

28100000258 is a wasteful number, since it uses less digits than its factorization.

28100000258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67224913.

The product of its (nonzero) digits is 1280, while the sum is 26.

The spelling of 28100000258 in words is "twenty-eight billion, one hundred million, two hundred fifty-eight", and thus it is an aban number.