11777375857871 has 16 divisors (see below), whose sum is σ = 12748677580800. Its totient is φ = 10815484082688.

The previous prime is 11777375857801. The next prime is 11777375857889. The reversal of 11777375857871 is 17875857377711.

It is a cyclic number.

It is not a de Polignac number, because 11777375857871 - 2¹⁴ = 11777375841487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11777375857801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2261015 + ... + 5354151.

It is an arithmetic number, because the mean of its divisors is an integer number (796792348800).

Almost surely, 2^{11777375857871} is an apocalyptic number.

11777375857871 is a deficient number, since it is larger than the sum of its proper divisors (971301722929).

11777375857871 is a wasteful number, since it uses less digits than its factorization.

11777375857871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094658.

The product of its digits is 564715200, while the sum is 74.

The spelling of 11777375857871 in words is "eleven trillion, seven hundred seventy-seven billion, three hundred seventy-five million, eight hundred fifty-seven thousand, eight hundred seventy-one".