11864868077 has 4 divisors (see below), whose sum is σ = 11884610556. Its totient is φ = 11845125600.

The previous prime is 11864868053. The next prime is 11864868083. The reversal of 11864868077 is 77086846811.

11864868077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4210192996 + 7654675081 = 64886^2 + 87491^2 .

It is a cyclic number.

It is not a de Polignac number, because 11864868077 - 2⁸ = 11864867821 is a prime.

It is a super-2 number, since 2×11864868077² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11864868377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9870338 + ... + 9871539.

It is an arithmetic number, because the mean of its divisors is an integer number (2971152639).

Almost surely, 2^11864868077 is an apocalyptic number.

It is an amenable number.

11864868077 is a deficient number, since it is larger than the sum of its proper divisors (19742479).

11864868077 is an equidigital number, since it uses as much as digits as its factorization.

11864868077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19742478.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 11864868077 in words is "eleven billion, eight hundred sixty-four million, eight hundred sixty-eight thousand, seventy-seven".