12427170261 has 8 divisors (see below), whose sum is σ = 18075884064. Its totient is φ = 7531618320.

The previous prime is 12427170253. The next prime is 12427170263. The reversal of 12427170261 is 16207172421.

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

It is not a de Polignac number, because 12427170261 - 2³ = 12427170253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 376580917 = 12427170261 / (1 + 2 + 4 + 2 + 7 + 1 + 7 + 0 + 2 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427170263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188290426 + ... + 188290491.

It is an arithmetic number, because the mean of its divisors is an integer number (2259485508).

Almost surely, 2^12427170261 is an apocalyptic number.

12427170261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12427170261 is a deficient number, since it is larger than the sum of its proper divisors (5648713803).

12427170261 is a wasteful number, since it uses less digits than its factorization.

12427170261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376580931.

The product of its (nonzero) digits is 9408, while the sum is 33.

The spelling of 12427170261 in words is "twelve billion, four hundred twenty-seven million, one hundred seventy thousand, two hundred sixty-one".