11499479693878 has 16 divisors (see below), whose sum is σ = 19807716219840. Its totient is φ = 4951929054600.

The previous prime is 11499479693869. The next prime is 11499479693879. The reversal of 11499479693878 is 87839697499411.

It is a junction number, because it is equal to n+sod(n) for n = 11499479693795 and 11499479693804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11499479693879) 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, 13755358068 + ... + 13755358903.

It is an arithmetic number, because the mean of its divisors is an integer number (1237982263740).

Almost surely, 2^{11499479693878} is an apocalyptic number.

11499479693878 is a deficient number, since it is larger than the sum of its proper divisors (8308236525962).

11499479693878 is a wasteful number, since it uses less digits than its factorization.

11499479693878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27510717003.

The product of its digits is 5925685248, while the sum is 85.

The spelling of 11499479693878 in words is "eleven trillion, four hundred ninety-nine billion, four hundred seventy-nine million, six hundred ninety-three thousand, eight hundred seventy-eight".