28131425435 has 8 divisors (see below), whose sum is σ = 33817042080. Its totient is φ = 22465585984.

The previous prime is 28131425431. The next prime is 28131425459. The reversal of 28131425435 is 53452413182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28131425435 - 2² = 28131425431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28131425431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4941167 + ... + 4946856.

It is an arithmetic number, because the mean of its divisors is an integer number (4227130260).

Almost surely, 2^28131425435 is an apocalyptic number.

28131425435 is a deficient number, since it is larger than the sum of its proper divisors (5685616645).

28131425435 is an equidigital number, since it uses as much as digits as its factorization.

28131425435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888597.

The product of its digits is 115200, while the sum is 38.

The spelling of 28131425435 in words is "twenty-eight billion, one hundred thirty-one million, four hundred twenty-five thousand, four hundred thirty-five".