138787775039 has 8 divisors (see below), whose sum is σ = 150923431728. Its totient is φ = 127093415040.

The previous prime is 138787775029. The next prime is 138787775051. The reversal of 138787775039 is 930577787831.

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 138787775039 - 2¹² = 138787770943 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 (138787775029) 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, 110323517 + ... + 110324774.

It is an arithmetic number, because the mean of its divisors is an integer number (18865428966).

Almost surely, 2^138787775039 is an apocalyptic number.

138787775039 is a deficient number, since it is larger than the sum of its proper divisors (12135656689).

138787775039 is a wasteful number, since it uses less digits than its factorization.

138787775039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220648345.

The product of its (nonzero) digits is 62233920, while the sum is 65.

The spelling of 138787775039 in words is "one hundred thirty-eight billion, seven hundred eighty-seven million, seven hundred seventy-five thousand, thirty-nine".