13756947984 has 200 divisors, whose sum is σ = 42992581632. Its totient is φ = 4221745920.

The previous prime is 13756947983. The next prime is 13756948019. The reversal of 13756947984 is 48974965731.

13756947984 is a `hidden beast` number, since 1 + 37 + 56 + 9 + 479 + 84 = 666.

It is not an unprimeable number, because it can be changed into a prime (13756947983) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8271537 + ... + 8273199.

Almost surely, 2^13756947984 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 13756947984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21496290816).

13756947984 is an abundant number, since it is smaller than the sum of its proper divisors (29235633648).

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

13756947984 is a wasteful number, since it uses less digits than its factorization.

13756947984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2172 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 13756947984 in words is "thirteen billion, seven hundred fifty-six million, nine hundred forty-seven thousand, nine hundred eighty-four".