13777494968 has 16 divisors (see below), whose sum is σ = 25841456160.
Its totient is φ = 6886440000.
The previous prime is 13777494959. The next prime is 13777494971. The reversal of 13777494968 is 86949477731.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262928 + ... + 310943.
It is an arithmetic number, because the mean of its divisors is an integer number (1615091010).
Almost surely, 213777494968 is an apocalyptic number.
It is an amenable number.
13777494968 is a deficient number, since it is larger than the sum of its proper divisors (12063961192).
13777494968 is a wasteful number, since it uses less digits than its factorization.
13777494968 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 576878 (or 576874 counting only the distinct ones).
The product of its digits is 64012032, while the sum is 65.
The spelling of 13777494968 in words is "thirteen billion, seven hundred seventy-seven million, four hundred ninety-four thousand, nine hundred sixty-eight".