11878407289 has 16 divisors (see below), whose sum is σ = 14298496000. Its totient is φ = 9639763344.

The previous prime is 11878407269. The next prime is 11878407301. The reversal of 11878407289 is 98270487811.

It is a cyclic number.

It is not a de Polignac number, because 11878407289 - 2¹³ = 11878399097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11878407239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199684 + ... + 252250.

It is an arithmetic number, because the mean of its divisors is an integer number (893656000).

Almost surely, 2^11878407289 is an apocalyptic number.

11878407289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11878407289 is a deficient number, since it is larger than the sum of its proper divisors (2420088711).

11878407289 is a wasteful number, since it uses less digits than its factorization.

11878407289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54292.

The product of its (nonzero) digits is 1806336, while the sum is 55.

The spelling of 11878407289 in words is "eleven billion, eight hundred seventy-eight million, four hundred seven thousand, two hundred eighty-nine".