13987298739 has 8 divisors (see below), whose sum is σ = 18652723200. Its totient is φ = 9323370056.

The previous prime is 13987298687. The next prime is 13987298803. The reversal of 13987298739 is 93789278931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13987298739 - 2¹³ = 13987290547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13987298739.

It is not an unprimeable number, because it can be changed into a prime (13987297739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351939 + ... + 389660.

It is an arithmetic number, because the mean of its divisors is an integer number (2331590400).

Almost surely, 2^13987298739 is an apocalyptic number.

13987298739 is a deficient number, since it is larger than the sum of its proper divisors (4665424461).

13987298739 is an equidigital number, since it uses as much as digits as its factorization.

13987298739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747889.

The product of its digits is 41150592, while the sum is 66.

The spelling of 13987298739 in words is "thirteen billion, nine hundred eighty-seven million, two hundred ninety-eight thousand, seven hundred thirty-nine".