11888900017 has 2 divisors, whose sum is σ = 11888900018. Its totient is φ = 11888900016.

The previous prime is 11888899973. The next prime is 11888900027. The reversal of 11888900017 is 71000988811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11337777441 + 551122576 = 106479^2 + 23476^2 .

It is a cyclic number.

It is not a de Polignac number, because 11888900017 - 2³¹ = 9741416369 is a prime.

It is a super-2 number, since 2×11888900017² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11888900027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5944450008 + 5944450009.

It is an arithmetic number, because the mean of its divisors is an integer number (5944450009).

Almost surely, 2^11888900017 is an apocalyptic number.

It is an amenable number.

11888900017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11888900017 is an equidigital number, since it uses as much as digits as its factorization.

11888900017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 43.

The spelling of 11888900017 in words is "eleven billion, eight hundred eighty-eight million, nine hundred thousand, seventeen".