12890213291 has 8 divisors (see below), whose sum is σ = 13255753104. Its totient is φ = 12525576480.

The previous prime is 12890213257. The next prime is 12890213293. The reversal of 12890213291 is 19231209821.

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 12890213291 - 2⁶ = 12890213227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12890213293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196745 + ... + 253946.

It is an arithmetic number, because the mean of its divisors is an integer number (1656969138).

Almost surely, 2^12890213291 is an apocalyptic number.

12890213291 is a deficient number, since it is larger than the sum of its proper divisors (365539813).

12890213291 is an equidigital number, since it uses as much as digits as its factorization.

12890213291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451501.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 12890213291 in words is "twelve billion, eight hundred ninety million, two hundred thirteen thousand, two hundred ninety-one".