11328707491 has 2 divisors, whose sum is σ = 11328707492. Its totient is φ = 11328707490.

The previous prime is 11328707483. The next prime is 11328707603. The reversal of 11328707491 is 19470782311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11328707491 - 2³ = 11328707483 is a prime.

It is a super-2 number, since 2×11328707491² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11328707461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5664353745 + 5664353746.

It is an arithmetic number, because the mean of its divisors is an integer number (5664353746).

Almost surely, 2^11328707491 is an apocalyptic number.

11328707491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11328707491 is an equidigital number, since it uses as much as digits as its factorization.

11328707491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 11328707491 in words is "eleven billion, three hundred twenty-eight million, seven hundred seven thousand, four hundred ninety-one".