11206409957 has 2 divisors, whose sum is σ = 11206409958. Its totient is φ = 11206409956.

The previous prime is 11206409933. The next prime is 11206410011. The reversal of 11206409957 is 75990460211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9682756801 + 1523653156 = 98401^2 + 39034^2 .

It is an emirp because it is prime and its reverse (75990460211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11206409957 - 2¹⁴ = 11206393573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11206409657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5603204978 + 5603204979.

It is an arithmetic number, because the mean of its divisors is an integer number (5603204979).

Almost surely, 2^11206409957 is an apocalyptic number.

It is an amenable number.

11206409957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11206409957 is an equidigital number, since it uses as much as digits as its factorization.

11206409957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 11206409957 in words is "eleven billion, two hundred six million, four hundred nine thousand, nine hundred fifty-seven".