11651827457 has 2 divisors, whose sum is σ = 11651827458. Its totient is φ = 11651827456.

The previous prime is 11651827409. The next prime is 11651827487. The reversal of 11651827457 is 75472815611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8548111936 + 3103715521 = 92456^2 + 55711^2 .

It is a cyclic number.

It is not a de Polignac number, because 11651827457 - 2¹⁸ = 11651565313 is a prime.

It is not a weakly prime, because it can be changed into another prime (11651827487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5825913728 + 5825913729.

It is an arithmetic number, because the mean of its divisors is an integer number (5825913729).

Almost surely, 2^11651827457 is an apocalyptic number.

It is an amenable number.

11651827457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11651827457 is an equidigital number, since it uses as much as digits as its factorization.

11651827457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 47.

The spelling of 11651827457 in words is "eleven billion, six hundred fifty-one million, eight hundred twenty-seven thousand, four hundred fifty-seven".