11643917234 has 4 divisors (see below), whose sum is σ = 17465875854. Its totient is φ = 5821958616.

The previous prime is 11643917227. The next prime is 11643917249. The reversal of 11643917234 is 43271934611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6489108025 + 5154809209 = 80555^2 + 71797^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11643917191 and 11643917200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2910979307 + ... + 2910979310.

Almost surely, 2^11643917234 is an apocalyptic number.

11643917234 is a deficient number, since it is larger than the sum of its proper divisors (5821958620).

11643917234 is an equidigital number, since it uses as much as digits as its factorization.

11643917234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821958619.

The product of its digits is 108864, while the sum is 41.

The spelling of 11643917234 in words is "eleven billion, six hundred forty-three million, nine hundred seventeen thousand, two hundred thirty-four".