12078284401 has 4 divisors (see below), whose sum is σ = 12713983600. Its totient is φ = 11442585204.

The previous prime is 12078284369. The next prime is 12078284411. The reversal of 12078284401 is 10448287021.

It is a happy number.

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 12078284401 - 2⁵ = 12078284369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12078284411) 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, 317849571 + ... + 317849608.

It is an arithmetic number, because the mean of its divisors is an integer number (3178495900).

Almost surely, 2^12078284401 is an apocalyptic number.

It is an amenable number.

12078284401 is a deficient number, since it is larger than the sum of its proper divisors (635699199).

12078284401 is an equidigital number, since it uses as much as digits as its factorization.

12078284401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635699198.

The product of its (nonzero) digits is 28672, while the sum is 37.

The spelling of 12078284401 in words is "twelve billion, seventy-eight million, two hundred eighty-four thousand, four hundred one".