28107555258 has 32 divisors (see below), whose sum is σ = 56889570816. Its totient is φ = 9257187888.

The previous prime is 28107555241. The next prime is 28107555263. The reversal of 28107555258 is 85255570182.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222441 + ... + 325107.

It is an arithmetic number, because the mean of its divisors is an integer number (1777799088).

Almost surely, 2^28107555258 is an apocalyptic number.

28107555258 is an abundant number, since it is smaller than the sum of its proper divisors (28782015558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28107555258 is a wasteful number, since it uses less digits than its factorization.

28107555258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103218.

The product of its (nonzero) digits is 1120000, while the sum is 48.

The spelling of 28107555258 in words is "twenty-eight billion, one hundred seven million, five hundred fifty-five thousand, two hundred fifty-eight".