12278900578 has 8 divisors (see below), whose sum is σ = 21049543872. Its totient is φ = 5262385956.

The previous prime is 12278900521. The next prime is 12278900653. The reversal of 12278900578 is 87500987221.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 438532150 + ... + 438532177.

It is an arithmetic number, because the mean of its divisors is an integer number (2631192984).

Almost surely, 2^12278900578 is an apocalyptic number.

12278900578 is a deficient number, since it is larger than the sum of its proper divisors (8770643294).

12278900578 is an equidigital number, since it uses as much as digits as its factorization.

12278900578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877064336.

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 12278900578 in words is "twelve billion, two hundred seventy-eight million, nine hundred thousand, five hundred seventy-eight".