138948641795 has 8 divisors (see below), whose sum is σ = 166748556960. Its totient is φ = 111152122240.

The previous prime is 138948641791. The next prime is 138948641837. The reversal of 138948641795 is 597146849831.

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

It is not a de Polignac number, because 138948641795 - 2² = 138948641791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138948641791) 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, 757991 + ... + 923280.

It is an arithmetic number, because the mean of its divisors is an integer number (20843569620).

Almost surely, 2^138948641795 is an apocalyptic number.

138948641795 is a deficient number, since it is larger than the sum of its proper divisors (27799915165).

138948641795 is a wasteful number, since it uses less digits than its factorization.

138948641795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697805.

The product of its digits is 52254720, while the sum is 65.

The spelling of 138948641795 in words is "one hundred thirty-eight billion, nine hundred forty-eight million, six hundred forty-one thousand, seven hundred ninety-five".