13998747744 has 72 divisors (see below), whose sum is σ = 40053299832. Its totient is φ = 4637606400.

The previous prime is 13998747727. The next prime is 13998747751. The reversal of 13998747744 is 44774789931.

13998747744 is a `hidden beast` number, since 1 + 39 + 98 + 7 + 477 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102157 + ... + 196044.

It is an arithmetic number, because the mean of its divisors is an integer number (556295831).

Almost surely, 2^13998747744 is an apocalyptic number.

It is an amenable number.

13998747744 is an abundant number, since it is smaller than the sum of its proper divisors (26054552088).

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

13998747744 is a wasteful number, since it uses less digits than its factorization.

13998747744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298380 (or 298369 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 63.

The spelling of 13998747744 in words is "thirteen billion, nine hundred ninety-eight million, seven hundred forty-seven thousand, seven hundred forty-four".