13694678840448 has 64 divisors (see below), whose sum is σ = 40418322976800. Its totient is φ = 4564892945664.

The previous prime is 13694678840413. The next prime is 13694678840459. The reversal of 13694678840448 is 84404887649631.

13694678840448 is a `hidden beast` number, since 1 + 3 + 6 + 9 + 4 + 67 + 88 + 40 + 448 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 1981286886 + ... + 1981293797.

Almost surely, 2^{13694678840448} is an apocalyptic number.

13694678840448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13694678840448 is an abundant number, since it is smaller than the sum of its proper divisors (26723644136352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13694678840448 is an equidigital number, since it uses as much as digits as its factorization.

13694678840448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962580706 (or 3962580688 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 72.

The spelling of 13694678840448 in words is "thirteen trillion, six hundred ninety-four billion, six hundred seventy-eight million, eight hundred forty thousand, four hundred forty-eight".