28350512903 has 4 divisors (see below), whose sum is σ = 28468150128. Its totient is φ = 28232875680.

The previous prime is 28350512851. The next prime is 28350512917. The reversal of 28350512903 is 30921505382.

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 28350512903 - 2¹⁴ = 28350496519 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 (28350512303) 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, 58818251 + ... + 58818732.

It is an arithmetic number, because the mean of its divisors is an integer number (7117037532).

Almost surely, 2^28350512903 is an apocalyptic number.

28350512903 is a deficient number, since it is larger than the sum of its proper divisors (117637225).

28350512903 is a wasteful number, since it uses less digits than its factorization.

28350512903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117637224.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 28350512903 in words is "twenty-eight billion, three hundred fifty million, five hundred twelve thousand, nine hundred three".