12790427181 has 8 divisors (see below), whose sum is σ = 19490174784. Its totient is φ = 7308815520.

The previous prime is 12790427171. The next prime is 12790427197. The reversal of 12790427181 is 18172409721.

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

It is not a de Polignac number, because 12790427181 - 2⁵ = 12790427149 is a prime.

It is a super-2 number, since 2×12790427181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790427171) 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, 304533960 + ... + 304534001.

It is an arithmetic number, because the mean of its divisors is an integer number (2436271848).

Almost surely, 2^12790427181 is an apocalyptic number.

It is an amenable number.

12790427181 is a deficient number, since it is larger than the sum of its proper divisors (6699747603).

12790427181 is an equidigital number, since it uses as much as digits as its factorization.

12790427181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609067971.

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 12790427181 in words is "twelve billion, seven hundred ninety million, four hundred twenty-seven thousand, one hundred eighty-one".