13640388143 has 8 divisors (see below), whose sum is σ = 14010641040. Its totient is φ = 13270219200.

The previous prime is 13640388133. The next prime is 13640388187. The reversal of 13640388143 is 34188304631.

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 13640388143 - 2⁴ = 13640388127 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 13640388143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13640388133) 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, 449243 + ... + 478643.

It is an arithmetic number, because the mean of its divisors is an integer number (1751330130).

Almost surely, 2^13640388143 is an apocalyptic number.

13640388143 is a deficient number, since it is larger than the sum of its proper divisors (370252897).

13640388143 is a wasteful number, since it uses less digits than its factorization.

13640388143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41977.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 13640388143 in words is "thirteen billion, six hundred forty million, three hundred eighty-eight thousand, one hundred forty-three".