13936849408 has 80 divisors (see below), whose sum is σ = 28296548280. Its totient is φ = 6856704000.

The previous prime is 13936849387. The next prime is 13936849457. The reversal of 13936849408 is 80494863931.

It can be written as a sum of positive squares in 4 ways, for example, as 9597729024 + 4339120384 = 97968^2 + 65872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9359128 + ... + 9360616.

Almost surely, 2^13936849408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13936849408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14148274140).

13936849408 is an abundant number, since it is smaller than the sum of its proper divisors (14359698872).

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

13936849408 is a wasteful number, since it uses less digits than its factorization.

13936849408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 13936849408 in words is "thirteen billion, nine hundred thirty-six million, eight hundred forty-nine thousand, four hundred eight".