28254086207 has 4 divisors (see below), whose sum is σ = 29916091296. Its totient is φ = 26592081120.

The previous prime is 28254086177. The next prime is 28254086209. The reversal of 28254086207 is 70268045282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28254086207 - 2¹⁶ = 28254020671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28254086209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831002519 + ... + 831002552.

It is an arithmetic number, because the mean of its divisors is an integer number (7479022824).

Almost surely, 2^28254086207 is an apocalyptic number.

28254086207 is a deficient number, since it is larger than the sum of its proper divisors (1662005089).

28254086207 is a wasteful number, since it uses less digits than its factorization.

28254086207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662005088.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 28254086207 in words is "twenty-eight billion, two hundred fifty-four million, eighty-six thousand, two hundred seven".