13971061856783 has 8 divisors (see below), whose sum is σ = 14355057602256. Its totient is φ = 13589125070400.

The previous prime is 13971061856771. The next prime is 13971061856789. The reversal of 13971061856783 is 38765816017931.

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 13971061856783 - 2³⁴ = 13953881987599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13971061856789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514726016 + ... + 514753157.

It is an arithmetic number, because the mean of its divisors is an integer number (1794382200282).

Almost surely, 2^{13971061856783} is an apocalyptic number.

13971061856783 is a deficient number, since it is larger than the sum of its proper divisors (383995745473).

13971061856783 is a wasteful number, since it uses less digits than its factorization.

13971061856783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029479545.

The product of its (nonzero) digits is 45722880, while the sum is 65.

The spelling of 13971061856783 in words is "thirteen trillion, nine hundred seventy-one billion, sixty-one million, eight hundred fifty-six thousand, seven hundred eighty-three".