11916281010878 has 16 divisors (see below), whose sum is σ = 18651647039616. Its totient is φ = 5699067463320.

The previous prime is 11916281010853. The next prime is 11916281010889. The reversal of 11916281010878 is 87801018261911.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16885973 + ... + 17577503.

It is an arithmetic number, because the mean of its divisors is an integer number (1165727939976).

Almost surely, 2^{11916281010878} is an apocalyptic number.

11916281010878 is a deficient number, since it is larger than the sum of its proper divisors (6735366028738).

11916281010878 is a wasteful number, since it uses less digits than its factorization.

11916281010878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066159.

The product of its (nonzero) digits is 387072, while the sum is 53.

The spelling of 11916281010878 in words is "eleven trillion, nine hundred sixteen billion, two hundred eighty-one million, ten thousand, eight hundred seventy-eight".