13971949210 has 8 divisors (see below), whose sum is σ = 25149508596. Its totient is φ = 5588779680.

The previous prime is 13971949183. The next prime is 13971949253. The reversal of 13971949210 is 1294917931.

It is a Cunningham number, because it is equal to 118203²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 13971949209 + 1 = 118203^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698597451 + ... + 698597470.

Almost surely, 2^13971949210 is an apocalyptic number.

13971949210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13971949210 is a deficient number, since it is larger than the sum of its proper divisors (11177559386).

13971949210 is a wasteful number, since it uses less digits than its factorization.

13971949210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397194928.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 13971949210 in words is "thirteen billion, nine hundred seventy-one million, nine hundred forty-nine thousand, two hundred ten".