30128748839 has 8 divisors (see below), whose sum is σ = 34437463200. Its totient is φ = 25821186336.

The previous prime is 30128748821. The next prime is 30128748847. The reversal of 30128748839 is 93884782103.

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 30128748839 - 2¹⁶ = 30128683303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30128748809) 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, 231164 + ... + 337185.

It is an arithmetic number, because the mean of its divisors is an integer number (4304682900).

Almost surely, 2^30128748839 is an apocalyptic number.

30128748839 is a deficient number, since it is larger than the sum of its proper divisors (4308714361).

30128748839 is an equidigital number, since it uses as much as digits as its factorization.

30128748839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575929.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 30128748839 in words is "thirty billion, one hundred twenty-eight million, seven hundred forty-eight thousand, eight hundred thirty-nine".