28238125429 has 16 divisors (see below), whose sum is σ = 28839939840. Its totient is φ = 27641151360.

The previous prime is 28238125397. The next prime is 28238125459. The reversal of 28238125429 is 92452183282.

It is a cyclic number.

It is not a de Polignac number, because 28238125429 - 2⁵ = 28238125397 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 (28238125459) 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, 14167657 + ... + 14169649.

It is an arithmetic number, because the mean of its divisors is an integer number (1802496240).

Almost surely, 2^28238125429 is an apocalyptic number.

It is an amenable number.

28238125429 is a deficient number, since it is larger than the sum of its proper divisors (601814411).

28238125429 is a wasteful number, since it uses less digits than its factorization.

28238125429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060.

The product of its digits is 552960, while the sum is 46.

The spelling of 28238125429 in words is "twenty-eight billion, two hundred thirty-eight million, one hundred twenty-five thousand, four hundred twenty-nine".