12028801615 has 4 divisors (see below), whose sum is σ = 14434561944. Its totient is φ = 9623041288.

The previous prime is 12028801597. The next prime is 12028801661. The reversal of 12028801615 is 51610882021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51610882021 = 1871 ⋅27584651.

It is a cyclic number.

It is not a de Polignac number, because 12028801615 - 2¹⁵ = 12028768847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202880157 + ... + 1202880166.

It is an arithmetic number, because the mean of its divisors is an integer number (3608640486).

Almost surely, 2^12028801615 is an apocalyptic number.

12028801615 is a deficient number, since it is larger than the sum of its proper divisors (2405760329).

12028801615 is an equidigital number, since it uses as much as digits as its factorization.

12028801615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405760328.

The product of its (nonzero) digits is 7680, while the sum is 34.

The spelling of 12028801615 in words is "twelve billion, twenty-eight million, eight hundred one thousand, six hundred fifteen".