13764661999 has 8 divisors (see below), whose sum is σ = 15025645440. Its totient is φ = 12505287000.

The previous prime is 13764661969. The next prime is 13764662029. The reversal of 13764661999 is 99916646731.

13764661999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13764661969) and next prime (13764662029).

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 13764661999 - 2⁹ = 13764661487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13764661969) 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 7 ways as a sum of consecutive naturals, for example, 384177 + ... + 418474.

It is an arithmetic number, because the mean of its divisors is an integer number (1878205680).

Almost surely, 2^13764661999 is an apocalyptic number.

13764661999 is a deficient number, since it is larger than the sum of its proper divisors (1260983441).

13764661999 is a wasteful number, since it uses less digits than its factorization.

13764661999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804221.

The product of its digits is 13226976, while the sum is 61.

The spelling of 13764661999 in words is "thirteen billion, seven hundred sixty-four million, six hundred sixty-one thousand, nine hundred ninety-nine".