11980878699 has 16 divisors (see below), whose sum is σ = 16040363040. Its totient is φ = 7954356480.

The previous prime is 11980878683. The next prime is 11980878709. The reversal of 11980878699 is 99687808911.

It is not a de Polignac number, because 11980878699 - 2⁴ = 11980878683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11980878619) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2254057 + ... + 2259365.

It is an arithmetic number, because the mean of its divisors is an integer number (1002522690).

Almost surely, 2^11980878699 is an apocalyptic number.

11980878699 is a deficient number, since it is larger than the sum of its proper divisors (4059484341).

11980878699 is a wasteful number, since it uses less digits than its factorization.

11980878699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270.

The product of its (nonzero) digits is 15676416, while the sum is 66.

The spelling of 11980878699 in words is "eleven billion, nine hundred eighty million, eight hundred seventy-eight thousand, six hundred ninety-nine".