13449890378799 has 96 divisors (see below), whose sum is σ = 22829591491200. Its totient is φ = 7626843721728.

The previous prime is 13449890378761. The next prime is 13449890378807. The reversal of 13449890378799 is 99787309894431.

13449890378799 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 98 + 90 + 378 + 79 + 9 = 666.

It is not a de Polignac number, because 13449890378799 - 2¹⁵ = 13449890346031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449890378599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2280799219 + ... + 2280805115.

It is an arithmetic number, because the mean of its divisors is an integer number (237808244700).

Almost surely, 2^{13449890378799} is an apocalyptic number.

13449890378799 is a deficient number, since it is larger than the sum of its proper divisors (9379701112401).

13449890378799 is a wasteful number, since it uses less digits than its factorization.

13449890378799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11454 (or 11437 counting only the distinct ones).

The product of its (nonzero) digits is 2962842624, while the sum is 81.

The spelling of 13449890378799 in words is "thirteen trillion, four hundred forty-nine billion, eight hundred ninety million, three hundred seventy-eight thousand, seven hundred ninety-nine".