28425020243 has 16 divisors (see below), whose sum is σ = 30028137600. Its totient is φ = 26832772800.

The previous prime is 28425020237. The next prime is 28425020249. The reversal of 28425020243 is 34202052482.

It is an interprime number because it is at equal distance from previous prime (28425020237) and next prime (28425020249).

It is not a de Polignac number, because 28425020243 - 2¹⁰ = 28425019219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28425020249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9968768 + ... + 9971618.

It is an arithmetic number, because the mean of its divisors is an integer number (1876758600).

Almost surely, 2^28425020243 is an apocalyptic number.

28425020243 is a deficient number, since it is larger than the sum of its proper divisors (1603117357).

28425020243 is a wasteful number, since it uses less digits than its factorization.

28425020243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562.

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 28425020243 in words is "twenty-eight billion, four hundred twenty-five million, twenty thousand, two hundred forty-three".