138127754937 has 4 divisors (see below), whose sum is σ = 184170339920. Its totient is φ = 92085169956.

The previous prime is 138127754923. The next prime is 138127754939. The reversal of 138127754937 is 739457721831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 138127754937 - 2¹² = 138127750841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138127754939) 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, 23021292487 + ... + 23021292492.

It is an arithmetic number, because the mean of its divisors is an integer number (46042584980).

Almost surely, 2^138127754937 is an apocalyptic number.

It is an amenable number.

138127754937 is a deficient number, since it is larger than the sum of its proper divisors (46042584983).

138127754937 is an equidigital number, since it uses as much as digits as its factorization.

138127754937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46042584982.

The product of its digits is 8890560, while the sum is 57.

The spelling of 138127754937 in words is "one hundred thirty-eight billion, one hundred twenty-seven million, seven hundred fifty-four thousand, nine hundred thirty-seven".