13999970484 has 18 divisors (see below), whose sum is σ = 35388814370. Its totient is φ = 4666656816.

The previous prime is 13999970483. The next prime is 13999970519. The reversal of 13999970484 is 48407999931.

It can be written as a sum of positive squares in only one way, i.e., 13900410000 + 99560484 = 117900^2 + 9978^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13999970483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194443999 + ... + 194444070.

Almost surely, 2^13999970484 is an apocalyptic number.

It is an amenable number.

13999970484 is an abundant number, since it is smaller than the sum of its proper divisors (21388843886).

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

13999970484 is a wasteful number, since it uses less digits than its factorization.

13999970484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388888079 (or 388888074 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 13999970484 in words is "thirteen billion, nine hundred ninety-nine million, nine hundred seventy thousand, four hundred eighty-four".