11209246957 has 2 divisors, whose sum is σ = 11209246958. Its totient is φ = 11209246956.

The previous prime is 11209246901. The next prime is 11209246969. The reversal of 11209246957 is 75964290211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10729023561 + 480223396 = 103581^2 + 21914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11209246957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11209276957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604623478 + 5604623479.

It is an arithmetic number, because the mean of its divisors is an integer number (5604623479).

Almost surely, 2^11209246957 is an apocalyptic number.

It is an amenable number.

11209246957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11209246957 is an equidigital number, since it uses as much as digits as its factorization.

11209246957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 11209246957 in words is "eleven billion, two hundred nine million, two hundred forty-six thousand, nine hundred fifty-seven".