138588649511 has 8 divisors (see below), whose sum is σ = 155738415840. Its totient is φ = 122365897632.

The previous prime is 138588649501. The next prime is 138588649513. The reversal of 138588649511 is 115946885831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138588649511 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 (138588649513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231753296 + ... + 231753893.

It is an arithmetic number, because the mean of its divisors is an integer number (19467301980).

Almost surely, 2^138588649511 is an apocalyptic number.

138588649511 is a deficient number, since it is larger than the sum of its proper divisors (17149766329).

138588649511 is a wasteful number, since it uses less digits than its factorization.

138588649511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463507225.

The product of its digits is 8294400, while the sum is 59.

The spelling of 138588649511 in words is "one hundred thirty-eight billion, five hundred eighty-eight million, six hundred forty-nine thousand, five hundred eleven".