10919449387855 has 8 divisors (see below), whose sum is σ = 13103443928592. Its totient is φ = 8735489734848.

The previous prime is 10919449387849. The next prime is 10919449387867. The reversal of 10919449387855 is 55878394491901.

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

It is a cyclic number.

It is not a de Polignac number, because 10919449387855 - 2¹¹ = 10919449385807 is a prime.

It is a Duffinian 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, 8028342 + ... + 9289411.

It is an arithmetic number, because the mean of its divisors is an integer number (1637930491074).

Almost surely, 2^{10919449387855} is an apocalyptic number.

10919449387855 is a deficient number, since it is larger than the sum of its proper divisors (2183994540737).

10919449387855 is a wasteful number, since it uses less digits than its factorization.

10919449387855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17443865.

The product of its (nonzero) digits is 391910400, while the sum is 73.

The spelling of 10919449387855 in words is "ten trillion, nine hundred nineteen billion, four hundred forty-nine million, three hundred eighty-seven thousand, eight hundred fifty-five".