13909712654 has 4 divisors (see below), whose sum is σ = 20864568984. Its totient is φ = 6954856326.

The previous prime is 13909712653. The next prime is 13909712683. The reversal of 13909712654 is 45621790931.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13909712654² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13909712599 and 13909712608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13909712653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3477428162 + ... + 3477428165.

It is an arithmetic number, because the mean of its divisors is an integer number (5216142246).

Almost surely, 2^13909712654 is an apocalyptic number.

13909712654 is a deficient number, since it is larger than the sum of its proper divisors (6954856330).

13909712654 is an equidigital number, since it uses as much as digits as its factorization.

13909712654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954856329.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 13909712654 in words is "thirteen billion, nine hundred nine million, seven hundred twelve thousand, six hundred fifty-four".