11628871099997 has 2 divisors, whose sum is σ = 11628871099998. Its totient is φ = 11628871099996.

The previous prime is 11628871099991. The next prime is 11628871100029. The reversal of 11628871099997 is 79999017882611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11206820780281 + 422050319716 = 3347659^2 + 649654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11628871099997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11628871099991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5814435549998 + 5814435549999.

It is an arithmetic number, because the mean of its divisors is an integer number (5814435549999).

Almost surely, 2^{11628871099997} is an apocalyptic number.

It is an amenable number.

11628871099997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11628871099997 is an equidigital number, since it uses as much as digits as its factorization.

11628871099997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246903552, while the sum is 77.

The spelling of 11628871099997 in words is "eleven trillion, six hundred twenty-eight billion, eight hundred seventy-one million, ninety-nine thousand, nine hundred ninety-seven".