12278017451 has 16 divisors (see below), whose sum is σ = 14103936000. Its totient is φ = 10470186528.

The previous prime is 12278017441. The next prime is 12278017483. The reversal of 12278017451 is 15471087221.

It is a cyclic number.

It is not a de Polignac number, because 12278017451 - 2¹⁰ = 12278016427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12278017441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540625 + ... + 1548573.

It is an arithmetic number, because the mean of its divisors is an integer number (881496000).

Almost surely, 2^12278017451 is an apocalyptic number.

12278017451 is a deficient number, since it is larger than the sum of its proper divisors (1825918549).

12278017451 is an equidigital number, since it uses as much as digits as its factorization.

12278017451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9058.

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 12278017451 in words is "twelve billion, two hundred seventy-eight million, seventeen thousand, four hundred fifty-one".