13981863707 has 8 divisors (see below), whose sum is σ = 16919230176. Its totient is φ = 11279486592.

The previous prime is 13981863677. The next prime is 13981863769. The reversal of 13981863707 is 70736818931.

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 13981863707 - 2¹⁰ = 13981862683 is a prime.

It is a super-2 number, since 2×13981863707² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13981863107) 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, 58747208 + ... + 58747445.

It is an arithmetic number, because the mean of its divisors is an integer number (2114903772).

Almost surely, 2^13981863707 is an apocalyptic number.

13981863707 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13981863707 is a deficient number, since it is larger than the sum of its proper divisors (2937366469).

13981863707 is a wasteful number, since it uses less digits than its factorization.

13981863707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117494677.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 13981863707 in words is "thirteen billion, nine hundred eighty-one million, eight hundred sixty-three thousand, seven hundred seven".