13758985997 has 4 divisors (see below), whose sum is σ = 14233433820. Its totient is φ = 13284538176.

The previous prime is 13758985993. The next prime is 13758986011. The reversal of 13758985997 is 79958985731.

13758985997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10276687876 + 3482298121 = 101374^2 + 59011^2 .

It is a cyclic number.

It is not a de Polignac number, because 13758985997 - 2² = 13758985993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13758985997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13758985993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237223868 + ... + 237223925.

It is an arithmetic number, because the mean of its divisors is an integer number (3558358455).

Almost surely, 2^13758985997 is an apocalyptic number.

It is an amenable number.

13758985997 is a deficient number, since it is larger than the sum of its proper divisors (474447823).

13758985997 is an equidigital number, since it uses as much as digits as its factorization.

13758985997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474447822.

The product of its digits is 171460800, while the sum is 71.

The spelling of 13758985997 in words is "thirteen billion, seven hundred fifty-eight million, nine hundred eighty-five thousand, nine hundred ninety-seven".