13949987466 has 16 divisors (see below), whose sum is σ = 29541150144. Its totient is φ = 4376466624.

The previous prime is 13949987461. The next prime is 13949987497. The reversal of 13949987466 is 66478994931.

It is a junction number, because it is equal to n+sod(n) for n = 13949987397 and 13949987406.

It is not an unprimeable number, because it can be changed into a prime (13949987461) 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, 68382190 + ... + 68382393.

It is an arithmetic number, because the mean of its divisors is an integer number (1846321884).

Almost surely, 2^13949987466 is an apocalyptic number.

13949987466 is an abundant number, since it is smaller than the sum of its proper divisors (15591162678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13949987466 is a wasteful number, since it uses less digits than its factorization.

13949987466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136764605.

The product of its digits is 70543872, while the sum is 66.

The spelling of 13949987466 in words is "thirteen billion, nine hundred forty-nine million, nine hundred eighty-seven thousand, four hundred sixty-six".