1228028935929 has 16 divisors (see below), whose sum is σ = 1723695329280. Its totient is φ = 775531547280.

The previous prime is 1228028935883. The next prime is 1228028935949. The reversal of 1228028935929 is 9295398208221.

It is not a de Polignac number, because 1228028935929 - 2¹⁹ = 1228028411641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228028935949) 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, 228657 + ... + 1583774.

It is an arithmetic number, because the mean of its divisors is an integer number (107730958080).

Almost surely, 2^{1228028935929} is an apocalyptic number.

1228028935929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1228028935929 is a deficient number, since it is larger than the sum of its proper divisors (495666393351).

1228028935929 is a wasteful number, since it uses less digits than its factorization.

1228028935929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824340.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 1228028935929 in words is "one trillion, two hundred twenty-eight billion, twenty-eight million, nine hundred thirty-five thousand, nine hundred twenty-nine".