13749408989678 has 8 divisors (see below), whose sum is σ = 21013247701368. Its totient is φ = 6744993089224.

The previous prime is 13749408989677. The next prime is 13749408989681. The reversal of 13749408989678 is 87698980494731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13749408989596 and 13749408989605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749408989671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64855702676 + ... + 64855702887.

It is an arithmetic number, because the mean of its divisors is an integer number (2626655962671).

Almost surely, 2^{13749408989678} is an apocalyptic number.

13749408989678 is a deficient number, since it is larger than the sum of its proper divisors (7263838711690).

13749408989678 is a wasteful number, since it uses less digits than its factorization.

13749408989678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129711405618.

The product of its (nonzero) digits is 5267275776, while the sum is 83.

The spelling of 13749408989678 in words is "thirteen trillion, seven hundred forty-nine billion, four hundred eight million, nine hundred eighty-nine thousand, six hundred seventy-eight".