11389792217 has 2 divisors, whose sum is σ = 11389792218. Its totient is φ = 11389792216.

The previous prime is 11389792201. The next prime is 11389792247. The reversal of 11389792217 is 71229798311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10101054016 + 1288738201 = 100504^2 + 35899^2 .

It is a cyclic number.

It is not a de Polignac number, because 11389792217 - 2⁴ = 11389792201 is a prime.

It is not a weakly prime, because it can be changed into another prime (11389792247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5694896108 + 5694896109.

It is an arithmetic number, because the mean of its divisors is an integer number (5694896109).

Almost surely, 2^11389792217 is an apocalyptic number.

It is an amenable number.

11389792217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11389792217 is an equidigital number, since it uses as much as digits as its factorization.

11389792217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 50.

The spelling of 11389792217 in words is "eleven billion, three hundred eighty-nine million, seven hundred ninety-two thousand, two hundred seventeen".