11564878040888 has 16 divisors (see below), whose sum is σ = 21684673527000. Its totient is φ = 5782298433696.

The previous prime is 11564878040851. The next prime is 11564878040893. The reversal of 11564878040888 is 88804087846511.

It is a happy number.

It is a super-2 number, since 2×11564878040888² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 17223323 + ... + 17882186.

Almost surely, 2^{11564878040888} is an apocalyptic number.

It is an amenable number.

11564878040888 is a deficient number, since it is larger than the sum of its proper divisors (10119795486112).

11564878040888 is a wasteful number, since it uses less digits than its factorization.

11564878040888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35146694 (or 35146690 counting only the distinct ones).

The product of its (nonzero) digits is 110100480, while the sum is 68.

The spelling of 11564878040888 in words is "eleven trillion, five hundred sixty-four billion, eight hundred seventy-eight million, forty thousand, eight hundred eighty-eight".