12634213091 has 8 divisors (see below), whose sum is σ = 13063780224. Its totient is φ = 12206021760.

The previous prime is 12634213063. The next prime is 12634213117. The reversal of 12634213091 is 19031243621.

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 12634213091 - 2⁶ = 12634213027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12634413091) 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, 325256 + ... + 362021.

It is an arithmetic number, because the mean of its divisors is an integer number (1632972528).

Almost surely, 2^12634213091 is an apocalyptic number.

12634213091 is a deficient number, since it is larger than the sum of its proper divisors (429567133).

12634213091 is an equidigital number, since it uses as much as digits as its factorization.

12634213091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687901.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 12634213091 in words is "twelve billion, six hundred thirty-four million, two hundred thirteen thousand, ninety-one".