13778076464668 has 12 divisors (see below), whose sum is σ = 24161971256640. Its totient is φ = 6874656105632.

The previous prime is 13778076464549. The next prime is 13778076464671. The reversal of 13778076464668 is 86646467087731.

It is a self number, because there is not a number n which added to its sum of digits gives 13778076464668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3595529521 + ... + 3595533352.

It is an arithmetic number, because the mean of its divisors is an integer number (2013497604720).

Almost surely, 2^{13778076464668} is an apocalyptic number.

It is an amenable number.

13778076464668 is a deficient number, since it is larger than the sum of its proper divisors (10383894791972).

13778076464668 is a wasteful number, since it uses less digits than its factorization.

13778076464668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191063356 (or 7191063354 counting only the distinct ones).

The product of its (nonzero) digits is 1365590016, while the sum is 73.

The spelling of 13778076464668 in words is "thirteen trillion, seven hundred seventy-eight billion, seventy-six million, four hundred sixty-four thousand, six hundred sixty-eight".