511028028889 has 4 divisors (see below), whose sum is σ = 584032033024. Its totient is φ = 438024024756.

The previous prime is 511028028883. The next prime is 511028028923. The reversal of 511028028889 is 988820820115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 511028028889 - 2²⁷ = 510893811161 is a prime.

It is a super-2 number, since 2×511028028889² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511028028883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36502002057 + ... + 36502002070.

It is an arithmetic number, because the mean of its divisors is an integer number (146008008256).

Almost surely, 2^511028028889 is an apocalyptic number.

It is an amenable number.

511028028889 is a deficient number, since it is larger than the sum of its proper divisors (73004004135).

511028028889 is an equidigital number, since it uses as much as digits as its factorization.

511028028889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73004004134.

The product of its (nonzero) digits is 737280, while the sum is 52.

The spelling of 511028028889 in words is "five hundred eleven billion, twenty-eight million, twenty-eight thousand, eight hundred eighty-nine".