13949639990783 has 8 divisors (see below), whose sum is σ = 15942468925440. Its totient is φ = 11956816861560.

The previous prime is 13949639990773. The next prime is 13949639990863. The reversal of 13949639990783 is 38709993694931.

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

It is a cyclic number.

It is not a de Polignac number, because 13949639990783 - 2¹⁴ = 13949639974399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13949639990698 and 13949639990707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949639990773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6905678 + ... + 8694116.

It is an arithmetic number, because the mean of its divisors is an integer number (1992808615680).

Almost surely, 2^{13949639990783} is an apocalyptic number.

13949639990783 is a deficient number, since it is larger than the sum of its proper divisors (1992828934657).

13949639990783 is a wasteful number, since it uses less digits than its factorization.

13949639990783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902717.

The product of its (nonzero) digits is 2142770112, while the sum is 80.

The spelling of 13949639990783 in words is "thirteen trillion, nine hundred forty-nine billion, six hundred thirty-nine million, nine hundred ninety thousand, seven hundred eighty-three".