1138649002399 has 4 divisors (see below), whose sum is σ = 1149922755000. Its totient is φ = 1127375249800.

The previous prime is 1138649002391. The next prime is 1138649002453. The reversal of 1138649002399 is 9932009468311.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1138649002399 - 2³ = 1138649002391 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 (1138649002391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636876149 + ... + 5636876350.

It is an arithmetic number, because the mean of its divisors is an integer number (287480688750).

Almost surely, 2^{1138649002399} is an apocalyptic number.

1138649002399 is a deficient number, since it is larger than the sum of its proper divisors (11273752601).

1138649002399 is a wasteful number, since it uses less digits than its factorization.

1138649002399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11273752600.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 1138649002399 in words is "one trillion, one hundred thirty-eight billion, six hundred forty-nine million, two thousand, three hundred ninety-nine".