11895701869 has 2 divisors, whose sum is σ = 11895701870. Its totient is φ = 11895701868.

The previous prime is 11895701861. The next prime is 11895701899. The reversal of 11895701869 is 96810759811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11059046244 + 836655625 = 105162^2 + 28925^2 .

It is a cyclic number.

It is not a de Polignac number, because 11895701869 - 2³ = 11895701861 is a prime.

It is a super-2 number, since 2×11895701869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11895701861) 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, 5947850934 + 5947850935.

It is an arithmetic number, because the mean of its divisors is an integer number (5947850935).

Almost surely, 2^11895701869 is an apocalyptic number.

It is an amenable number.

11895701869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11895701869 is an equidigital number, since it uses as much as digits as its factorization.

11895701869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 55.

The spelling of 11895701869 in words is "eleven billion, eight hundred ninety-five million, seven hundred one thousand, eight hundred sixty-nine".