11475091457 has 2 divisors, whose sum is σ = 11475091458. Its totient is φ = 11475091456.

The previous prime is 11475091447. The next prime is 11475091489. The reversal of 11475091457 is 75419057411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9683347216 + 1791744241 = 98404^2 + 42329^2 .

It is a cyclic number.

It is not a de Polignac number, because 11475091457 - 2¹² = 11475087361 is a prime.

It is not a weakly prime, because it can be changed into another prime (11475091417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5737545728 + 5737545729.

It is an arithmetic number, because the mean of its divisors is an integer number (5737545729).

It is a Proth number, since it is equal to 21887 ⋅ 2¹⁹ + 1 and 21887 < 2¹⁹.

Almost surely, 2^11475091457 is an apocalyptic number.

It is an amenable number.

11475091457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11475091457 is an equidigital number, since it uses as much as digits as its factorization.

11475091457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 11475091457 in words is "eleven billion, four hundred seventy-five million, ninety-one thousand, four hundred fifty-seven".