11878469354865 has 8 divisors (see below), whose sum is σ = 19005550967808. Its totient is φ = 6335183655920.

The previous prime is 11878469354861. The next prime is 11878469354881. The reversal of 11878469354865 is 56845396487811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11878469354865 - 2² = 11878469354861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11878469354861) 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, 395948978481 + ... + 395948978510.

It is an arithmetic number, because the mean of its divisors is an integer number (2375693870976).

Almost surely, 2^{11878469354865} is an apocalyptic number.

11878469354865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11878469354865 is a deficient number, since it is larger than the sum of its proper divisors (7127081612943).

11878469354865 is an equidigital number, since it uses as much as digits as its factorization.

11878469354865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791897956999.

The product of its digits is 1393459200, while the sum is 75.

The spelling of 11878469354865 in words is "eleven trillion, eight hundred seventy-eight billion, four hundred sixty-nine million, three hundred fifty-four thousand, eight hundred sixty-five".