28786408351 has 8 divisors (see below), whose sum is σ = 29810753280. Its totient is φ = 27778195032.

The previous prime is 28786408349. The next prime is 28786408433. The reversal of 28786408351 is 15380468782.

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 28786408351 - 2¹ = 28786408349 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 (28786408051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4029271 + ... + 4036408.

It is an arithmetic number, because the mean of its divisors is an integer number (3726344160).

Almost surely, 2^28786408351 is an apocalyptic number.

28786408351 is a deficient number, since it is larger than the sum of its proper divisors (1024344929).

28786408351 is an equidigital number, since it uses as much as digits as its factorization.

28786408351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065805.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 28786408351 in words is "twenty-eight billion, seven hundred eighty-six million, four hundred eight thousand, three hundred fifty-one".