11913306446449 has 16 divisors (see below), whose sum is σ = 12086482996224. Its totient is φ = 11741267246400.

The previous prime is 11913306446429. The next prime is 11913306446479. The reversal of 11913306446449 is 94464460331911.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11913306446449 - 2¹⁵ = 11913306413681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11913306446449.

It is not an unprimeable number, because it can be changed into a prime (11913306446429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79420779 + ... + 79570639.

It is an arithmetic number, because the mean of its divisors is an integer number (755405187264).

Almost surely, 2^{11913306446449} is an apocalyptic number.

It is an amenable number.

11913306446449 is a deficient number, since it is larger than the sum of its proper divisors (173176549775).

11913306446449 is a wasteful number, since it uses less digits than its factorization.

11913306446449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153648.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 11913306446449 in words is "eleven trillion, nine hundred thirteen billion, three hundred six million, four hundred forty-six thousand, four hundred forty-nine".