12278332771 has 8 divisors (see below), whose sum is σ = 12624228288. Its totient is φ = 11934648000.

The previous prime is 12278332769. The next prime is 12278332783. The reversal of 12278332771 is 17723387221.

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

It is a cyclic number.

It is not a de Polignac number, because 12278332771 - 2¹ = 12278332769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12278332721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541420 + ... + 563641.

It is an arithmetic number, because the mean of its divisors is an integer number (1578028536).

Almost surely, 2^12278332771 is an apocalyptic number.

12278332771 is a deficient number, since it is larger than the sum of its proper divisors (345895517).

12278332771 is a wasteful number, since it uses less digits than its factorization.

12278332771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105373.

The product of its digits is 197568, while the sum is 43.

The spelling of 12278332771 in words is "twelve billion, two hundred seventy-eight million, three hundred thirty-two thousand, seven hundred seventy-one".