12477478279 has 8 divisors (see below), whose sum is σ = 14303059328. Its totient is φ = 10662668280.

The previous prime is 12477478187. The next prime is 12477478283. The reversal of 12477478279 is 97287477421.

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 12477478279 - 2²⁵ = 12443923847 is a prime.

It is a super-3 number, since 3×12477478279³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12477478379) 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, 2690277 + ... + 2694910.

It is an arithmetic number, because the mean of its divisors is an integer number (1787882416).

Almost surely, 2^12477478279 is an apocalyptic number.

12477478279 is a deficient number, since it is larger than the sum of its proper divisors (1825581049).

12477478279 is an equidigital number, since it uses as much as digits as its factorization.

12477478279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385525.

The product of its digits is 11063808, while the sum is 58.

The spelling of 12477478279 in words is "twelve billion, four hundred seventy-seven million, four hundred seventy-eight thousand, two hundred seventy-nine".