11881078806562 has 16 divisors (see below), whose sum is σ = 20378210637312. Its totient is φ = 5089229174880.

The previous prime is 11881078806539. The next prime is 11881078806563. The reversal of 11881078806562 is 26560887018811.

It is a happy number.

11881078806562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11881078806562.

It is not an unprimeable number, because it can be changed into a prime (11881078806563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221784114 + ... + 221837677.

It is an arithmetic number, because the mean of its divisors is an integer number (1273638164832).

Almost surely, 2^{11881078806562} is an apocalyptic number.

11881078806562 is a deficient number, since it is larger than the sum of its proper divisors (8497131830750).

11881078806562 is a wasteful number, since it uses less digits than its factorization.

11881078806562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443623713.

The product of its (nonzero) digits is 10321920, while the sum is 61.

The spelling of 11881078806562 in words is "eleven trillion, eight hundred eighty-one billion, seventy-eight million, eight hundred six thousand, five hundred sixty-two".