12789190511 has 4 divisors (see below), whose sum is σ = 12853458000. Its totient is φ = 12724923024.

The previous prime is 12789190481. The next prime is 12789190541. The reversal of 12789190511 is 11509198721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11509198721 = 18451 ⋅623771.

It is an interprime number because it is at equal distance from previous prime (12789190481) and next prime (12789190541).

It is a cyclic number.

It is not a de Polignac number, because 12789190511 - 2¹⁰ = 12789189487 is a prime.

It is a super-2 number, since 2×12789190511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12789190541) 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, 32133446 + ... + 32133843.

It is an arithmetic number, because the mean of its divisors is an integer number (3213364500).

Almost surely, 2^12789190511 is an apocalyptic number.

12789190511 is a deficient number, since it is larger than the sum of its proper divisors (64267489).

12789190511 is an equidigital number, since it uses as much as digits as its factorization.

12789190511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64267488.

The product of its (nonzero) digits is 45360, while the sum is 44.

The spelling of 12789190511 in words is "twelve billion, seven hundred eighty-nine million, one hundred ninety thousand, five hundred eleven".