13988587470 has 128 divisors (see below), whose sum is σ = 39486279168. Its totient is φ = 3126796800.

The previous prime is 13988587469. The next prime is 13988587519. The reversal of 13988587470 is 7478588931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6532600 + ... + 6534740.

It is an arithmetic number, because the mean of its divisors is an integer number (308486556).

Almost surely, 2^13988587470 is an apocalyptic number.

13988587470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13988587470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19743139584).

13988587470 is an abundant number, since it is smaller than the sum of its proper divisors (25497691698).

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

13988587470 is a wasteful number, since it uses less digits than its factorization.

13988587470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698.

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 13988587470 in words is "thirteen billion, nine hundred eighty-eight million, five hundred eighty-seven thousand, four hundred seventy".