28788458493 has 32 divisors (see below), whose sum is σ = 39370383360. Its totient is φ = 18707270400.

The previous prime is 28788458473. The next prime is 28788458509. The reversal of 28788458493 is 39485488782.

It is not a de Polignac number, because 28788458493 - 2⁶ = 28788458429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28788458473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5974021 + ... + 5978837.

It is an arithmetic number, because the mean of its divisors is an integer number (1230324480).

Almost surely, 2^28788458493 is an apocalyptic number.

It is an amenable number.

28788458493 is a deficient number, since it is larger than the sum of its proper divisors (10581924867).

28788458493 is a wasteful number, since it uses less digits than its factorization.

28788458493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217.

The product of its digits is 123863040, while the sum is 66.

The spelling of 28788458493 in words is "twenty-eight billion, seven hundred eighty-eight million, four hundred fifty-eight thousand, four hundred ninety-three".